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diff --git a/doc/kdeprint/Makefile.am b/doc/kdeprint/Makefile.am new file mode 100644 index 000000000..e786da562 --- /dev/null +++ b/doc/kdeprint/Makefile.am @@ -0,0 +1,3 @@ + +KDE_LANG = en +KDE_DOCS = AUTO diff --git a/doc/kdeprint/add-printer-wiz.docbook b/doc/kdeprint/add-printer-wiz.docbook new file mode 100644 index 000000000..6b6ada4ea --- /dev/null +++ b/doc/kdeprint/add-printer-wiz.docbook @@ -0,0 +1,290 @@ +<chapter id="add-printer-wizard-2"> +<title>The <quote>Add Printer Wizard</quote> for &CUPS;</title> + +<para>Clicking on the leftmost icon on the toolbar +<inlinemediaobject><imageobject> <imagedata +fileref="cr32-action-wizard.png" format="PNG"/></imageobject> +</inlinemediaobject> in the upper part of the window starts the +<quote>Add Printer Wizard</quote>.</para> + +<para>This wizard steps you through various screens to install a new +printer. At present this Wizard works for &CUPS; and the +<acronym>RLPR</acronym> environment module. The number of steps depend +on the actual print-subsystem which is active and available to you on +your box.</para> + +<sect1> +<title>Starting</title> + +<para>The welcome screen informs you that you can go back any time to +change a setting. </para> + +<screenshot> +<screeninfo>The &kdeprint; wizard introduction screen</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsaddprinterwizard1.png" +format="PNG"/></imageobject> +<textobject> +<phrase>The introduction screen of the printer wizard</phrase></textobject> +</mediaobject> +</screenshot> + +</sect1> +<sect1 id="backend-selection"> +<title>Backend Selection</title> + +<para>Choose the <quote>backend</quote> protocol that &CUPS; is supposed to +use with your new printer. There are:</para> + +<itemizedlist> +<listitem> +<para>local printer (serial, parallel, <acronym>USB</acronym>)</para> +</listitem> +<listitem> +<para>remote <acronym>LPD</acronym> queue</para> +</listitem> +<listitem> +<para><acronym>SMB</acronym> shared printer (&Windows;)</para> +</listitem> +<listitem> +<para>Network Printer (<acronym>TCP</acronym>, &HP; JetDirect, +AppSocket)</para> +</listitem> +<listitem> +<para>Network printer with &IPP; (&IPP;/<acronym>HTTP</acronym>)</para> +</listitem> +<listitem> +<para>File printer</para> +</listitem> +<listitem> +<para>serial fax /modem printer</para> +</listitem> +<listitem> +<para>Class of Printers</para> +</listitem> +</itemizedlist> + +<para>If some choices are grayed out, they are not available. For +example, you may have no FAX backend software or no modem installed to +use it.</para> + +<screenshot> +<screeninfo>Choosing your Printer system</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsaddprinterwizard2_backendselection.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Choosing your Printer System</phrase></textobject> +</mediaobject> +</screenshot> + +</sect1> + +<sect1 id="direct-network-settings"> +<title>Direct Network Setting</title> + +<para>The contents of your next screen is dependent on your choice in +the previous screen. If you know the details, just type them in to +configure your network settings directly.</para> + +<para>In other cases the wizard can scan the network for you, to help you +decide which setting could be useful. </para> + +<screenshot> +<screeninfo>&kdeprint; wizard network scan</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsaddprinterwizard3_networkscan.png" +format="PNG"/></imageobject> +<textobject> +<phrase>In the &kdeprint; wizard, you can enter network details +directly, or you can scan the network +automatically.</phrase></textobject> +</mediaobject> +</screenshot> + +</sect1> +<sect1 id="information-retrieval-by-network-scanning"> +<title>Information Retrieval by Scanning the Network</title> + +<para>If you use one of the network connections (remote +<acronym>LPD</acronym>, <acronym>SMB</acronym>, remote &CUPS;, network +printer with &IPP;), you have an option for scanning the network. Be careful +when applying this; in some environments network scanning is considered +to be hostile and harmful!</para> + +<para>In the case of <acronym>SMB</acronym>, &kdeprint; will use the +Samba utilities <command>nmblookup</command> and +<command>smbclient</command> (which need to be installed for this to +work) to retrieve the information it presents in a tree +structure.</para> + +<para>In the case of &IPP; (Port 631) and <acronym>TCP</acronym> +Network/AppSocket (Port 9100) &kdeprint; will try to open the port and, +if successful, send an <command>ipp-get-printer-attribute</command> +request to the printer. For newer &HP; printers the latter usually +works, because they support both AppSocket and &IPP;.</para> + +<para>Some printers or manufacturers use other port numbers for direct +TCP/IP printing. You may need to look up which one to use. The +<guilabel>Settings</guilabel> button in the dialog lets you configure +your scan, including <acronym>IP</acronym> addresses, ports and +timeout to use.</para> + +<para>Once again: be careful not to be mistaken for an intruder on +your network, if you use the scanning technique.</para> + +<screenshot> +<screeninfo>&kdeprint; wizard network configuration dialog</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsaddprinterwizard4_networkscan_config.png" +format="PNG"/></imageobject> +<textobject> +<phrase>In the &kdeprint; wizard, you can enter parameters to have the +wizard scan parts of your network.</phrase></textobject> +</mediaobject> +</screenshot> + +</sect1> +<sect1 id="printer-model-selection"> +<title>Printer Model Selection</title> + +<para>The hardest part is probably the <quote>Printer Model +Selection</quote>. In former years the situation was difficult, because +there were hardly any drivers to find. The difficulty now is there are too +many; though some of them are very good, many are quite broken. </para> + +<para>If you have a current <quote>database</quote> of available drivers +on your system, select the manufacturer in the left part of the window +first, then the device model in the right part. This split window shows +all &PPD;s found by &CUPS; in its standard repository of installable +&PPD;s. This repository normally is <filename +class="directory">/usr/share/cups/model/</filename>. If you want your +driver to be found automatically by &CUPS; and &kdeprint;, place it in +there.</para> + +<!-- Insert Screenshot here: --> + +</sect1> + +<sect1 id="driver-selection"> +<title>Driver Selection</title> + +<para>On the next screen you will see a description of the driver +selected previously. This description is extracted from the actual &PPD; +used.</para> + +<warning> +<para>For a real &PostScript; printer <emphasis>never</emphasis> try to +install a <quote>Foomatic</quote> or <quote>Gimp-Print</quote> &PPD;, +even if it is offered. You won't be happy with it. Instead find the +original &PPD; from the manufacturer, preferably the one written for +&Windows; NT and use it. </para> +</warning> + +<para>Some &Linux; distributions have supplied for &CUPS; every +possible combination of <application>Ghostscript</application> filters +and <quote>foomatic</quote> &PPD; files they could find on the net. +Many of these are quite useless; they were generated a year ago, when +the people at <ulink +url="http://www.linuxprinting.org">www.linuxprinting.org</ulink> began +their first experiments with supplying third party &PPD;s for +&CUPS;. Although dubbed <quote>Alpha</quote> at the time, these +started to take on a life of their own and can now be found at various +places on the net, doing &CUPS; no favors.</para> + +<para>If you are not sure which ones to use go to:</para> + +<itemizedlist> +<listitem> +<para><ulink +url="http://www.linuxprinting.org">http://www.linuxprinting.org</ulink> +</para> +</listitem> + +<listitem> +<para> +<ulink url="http://www.cups.org">http://www.cups.org</ulink> +</para> +</listitem> +</itemizedlist> + +<para>And ask for help. At a later stage, a document detailing the +differences between the different driver and &PPD; models will appear at +<ulink +url="http://kdeprint.sourceforge.net">http://kdeprint.sourceforge.net/</ulink> +Watch out for this!</para> + +<para>Via the <guibutton>Other...</guibutton> button you are able to +retrieve any &PPD; located somewhere on your available file +system.</para> + +<!-- Insert Screenshot here: --> + +</sect1> +<sect1 id="printer-test-and-finding-settings"> +<title>Printer Test and Finding the Right Settings</title> + +<para>Specify your first driver settings now. The most important one is the +default paper size. In many cases this is set to +<quote>Letter</quote>. If you live in an <quote>A4</quote> +country and don't want your first test page to jam: now is the time to +prevent this. </para> + +<para>You are ready to start a test print. Hit the +<guibutton>Test</guibutton> button.</para> + +<!-- Insert Screenshot here: --> + +</sect1> + +<sect1 id="banner-selection"> +<title>Banner Selection</title> + +<para>The last but one screen lets you select whether you want banners, and +which ones you want to use, to mark the beginning and/or end of every printjob +on that printer. You can also select and deselect banners before printing +in the job options dialogs.</para> + +<para>If you need to use custom banners, copy them into <filename +class="directory">/usr/share/cups/banners/</filename> to make them +available for selection. They must be &PostScript; files, +however.</para> + +<!-- Insert Screenshot here: --> + +</sect1> + +<sect1 id="baptizing-your-printer"> +<title>Finally: Baptizing Your New Printer</title> + +<para>The last screen lets you insert a name for your new +printer.</para> + +<para>The name must start with a letter and may contain numbers and +underscores with a maximum size of 128 characters. Conform to this if you +want to avoid erratic behavior of your &CUPS; daemon. The printer +names in &CUPS; are <emphasis>not</emphasis> case sensitive! This is a +requirement of &IPP;. So the names <systemitem +class="resource">DANKA_infotec</systemitem>, <systemitem +class="resource">Danka_Infotec</systemitem> and <systemitem +class="resource">danka_infotec</systemitem> all represent the same +printer.</para> + +<!-- Insert Screenshot here: --> + +</sect1> + +<sect1 id="final-confirmation-screen"> +<title>The Final Confirmation Screen</title> + +<para> +<!-- Insert Screenshot here: --> +</para> + +</sect1> + +</chapter> diff --git a/doc/kdeprint/cr32-action-wizard.png b/doc/kdeprint/cr32-action-wizard.png Binary files differnew file mode 100644 index 000000000..b00db2499 --- /dev/null +++ b/doc/kdeprint/cr32-action-wizard.png diff --git a/doc/kdeprint/cups-config.docbook b/doc/kdeprint/cups-config.docbook new file mode 100644 index 000000000..ff286e632 --- /dev/null +++ b/doc/kdeprint/cups-config.docbook @@ -0,0 +1,2072 @@ +<chapter id="cups-configuration"> +<title>Print Server Configuration: CUPS</title> + +<para>Start the print server configuration (now that you have chosen +&CUPS;, this is equivalent to the configuration of the &CUPS; daemon) by +clicking on the appropriate button. You can find it by moving the mouse +slowly over the buttons and reading the tooltips. It should be the 11th +from the left , or third from the right; its icon is a +<guiicon>wrench</guiicon>.</para> + +<para>The &CUPS; Server Configuration window pops up. It gives you a +structured view of all the settings that apply to the &CUPS; daemon. The +configuration file for that daemon is normally located in +<filename>/etc/cups/cupsd.conf</filename>. This is a plain +<acronym>ASCII</acronym> file with a syntax similar to the configuration +file of the <application>Apache</application> web server. It is a good +idea to create a backup copy, just in case something goes wrong with the +configuration through &kdeprint;/&CUPS; Server Configuration +dialogs:</para> + +<screen><userinput><command>cp</command> <filename>/etc/cups/cupsd.conf</filename> <filename>/etc/cups/cupsd.conf.bak</filename></userinput></screen> + +<para>As this graphical user interface to edit the configuration file is +such a new feature, you should have the second chance of resorting to +the original file. So back it up, please.</para> + +<sect1 id="quick-help"> +<title>Quick Help</title> + +<para>One very nice feature is the <quote>Quick Help</quote> +available. If you click on the little question mark (<guiicon>What's +this?</guiicon>) on your window title bar, you'll see the cursor +changing its form. Now click on a <command>cupsd</command> +configuration setting field to find out what it means and what your +options are. In most cases you should understand the meaning +immediately, otherwise turn to the excellent &CUPS; documentation. (If +your &CUPS; Daemon is running, you have it online on your own host at +<ulink +url="http://localhost:631/documentation.html">http://localhost:631/documentation.html</ulink>.</para> +<para>If &CUPS; is not running, but installed on your system you could +find it in your own host's file system. The exact location depends on +your &OS;, but on &Linux; the default is <filename +class="directory">/usr/share/doc/cups/</filename> or +<filename class="directory"> +/usr/share/doc/cups/documentation.html</filename>.</para> + +</sect1> +<sect1 id="longer-help"> +<title>Longer Help</title> + +<para>For the best, most detailed and most recent information you should +always refer to the original &CUPS; documentation. &CUPS; is, much like +&kde; in a rapid development process. There are constantly new features +being added. New features might for times be only configurable by +directly editing the configuration files. The &kdeprint; &GUI; might not +have caught up with &CUPS; development.</para> + +<para>Just in case you want to look at the original configuration files +of your &CUPS; system -- they are here:</para> + +<note> +<para>These paths are based on the default installation. Your &OS; +may have installed them to a different prefix, for example, <filename +class="directory">/usr/local/</filename>, but the hierarchy should +still match that shown below.</para> +</note> + +<variablelist> +<varlistentry> +<term><filename class="directory">/etc/cups/</filename></term> +<listitem> +<para>The folder with the configuration files</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><filename>/etc/cups/cupsd.conf</filename></term> +<listitem> +<para>The configuration file for the &CUPS; daemon</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><filename>/etc/cups/printers.conf</filename></term> +<listitem> +<para>The configuration file that contains the information about your +locally installed printers.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><filename class="directory">/etc/cups/ppd/</filename></term> +<listitem> +<para>The folder with &PPD; files of your installed +printers.</para> +</listitem> +</varlistentry> +</variablelist> + +<para>The following links only work if your &CUPS; daemon is up and +running. To access all the original &CUPS; documentation, go +to:</para> + +<variablelist> +<varlistentry> +<term><ulink url="http://localhost:631/documentation.html"> +http://localhost:631/documentation.html</ulink></term> +<listitem> +<para>A page with all the links to the other documents.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><ulink url="http://localhost:631/sam.html"> +http://localhost:631/sam.html</ulink></term> +<listitem> +<para>Direct access to the &CUPS; Software Administrator Manual +in <acronym>HTML</acronym> format.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><ulink url="http://localhost:631/sam.pdf"> +http://localhost:631/sam.pdf</ulink></term> +<listitem> +<para>Direct access to the &CUPS; Software Administrator Manual in +<acronym>PDF</acronym> format.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><ulink url="http://www.cups.org/documentation.html"> +http://www.cups.org/documentation.html</ulink></term> +<listitem> +<para>The latest on line documentation from the &CUPS; web +site.</para> +</listitem> +</varlistentry> +</variablelist> +<para>The following links give you access to the same files (probably +icons and graphics will be missing) even if your CUPS daemon is not up +and running. You need, however, CUPS installed on your system. (Some +distributions might place the files somewhere else -- you're on your +own then to find out where...) To access all the original CUPS +documentation, go to:</para> + +<para>This documentation is available even when the &CUPS; daemon is +not installed, although you may find images and icons are missing when +you view the <acronym>HTML</acronym> files.</para> + +<para>As noted above, the hierarchy below should be intact, but your +&OS; may have installed &CUPS; to a different location.</para> + +<variablelist> +<varlistentry> +<term><filename>/usr/share/doc/cups/documentation.html</filename></term> +<listitem> +<para>A page with all the links to the other documents.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><filename>/usr/share/doc/cups/sam.html</filename></term> +<listitem> +<para>Direct access to the &CUPS; Software Administrator Manual in +<acronym>HTML</acronym> format.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><filename>/usr/share/doc/cups/sam.pdf</filename></term> +<listitem> +<para>Direct access to the &CUPS; Software Administrator Manual in +<acronym>PDF</acronym> format.</para> +</listitem> +</varlistentry> +</variablelist> + +<para>There are a few WebSites and Newsgroups discussing &CUPS; (and +&Linux; Printing in General) and giving help to newbies at:</para> + +<variablelist> +<varlistentry> +<term><ulink url="http://www.cups.org/newsgroups.php"> +http://www.cups.org/newsgroups.php</ulink></term> +<listitem> +<para>The &CUPS; website.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><ulink url="http://www.linuxprinting.org/newsportal/"> +http://www.linuxprinting.org/newsportal/</ulink></term> +<listitem> +<para>LinuxPrinting.org, the home of the Linuxprinting HOWTO and the +&Linux; Printer Database</para> +</listitem> +</varlistentry> +</variablelist> + +<para>And finally, there will be a WebSite for &kdeprint; and related +documentation, at <ulink url="http://kdeprint.sourceforge.net/"> +http://kdeprint.sourceforge.net/</ulink></para> + +<para>In the next section I will step you through most of the +configuration options of &kdeprint; with &CUPS;.</para> + +</sect1> +<sect1 id="explaining-different-gui-elements"> +<title>Explaining different elements of the &GUI;</title> + +<sect2> +<title>Upper Window: View on Printers, both Real and Virtual</title> + +<para>This section is not yet complete</para> + +<itemizedlist> +<listitem> +<para>Tree view, icon view and list view</para> +</listitem> +<listitem> +<para>The icons of the task bar</para> +</listitem> +<listitem> +<para>Different fonts for different printers</para> +</listitem> +<listitem> +<para>Different printer icons mean different things</para> +</listitem> +</itemizedlist> + +</sect2> + +<sect2> +<title>Lower Window: Tabbed View of Details</title> + +<para>This section is not yet complete.</para> + +<itemizedlist> +<listitem> +<para>The icons of the task bar</para> +</listitem> +<listitem> +<para>The Tabs</para> +</listitem> +<listitem> +<para>Changing printer settings</para> +</listitem> +</itemizedlist> + +</sect2> + +</sect1> + + +<sect1 id="welcome-to-cups-server-configuration"> +<title>Welcome to the &CUPS; Server Configuration</title> + +<para>This is the Welcome Screen for your server configuration +dialogs. Clicking onto one of the items of the tree view on left +side of the screen opens the appropriate part of the configuration +settings.</para> + +<para>Every setting has a default value. The defaults let &CUPS; +normally work as a fully functional client. The clients listen on +TCP/IP Port 631 for infos broadcast by &CUPS; servers on the +<acronym>LAN</acronym>. This information let the clients print +immediately after receiving them, without installing any driver or +configuring any printer on the clients.</para> + +<para>To configure a &CUPS; server (which is broadcasting its service +to the <acronym>LAN</acronym>) you need to change settings from the +defaults.</para> + +<para>The dialog to configure the &CUPS; server: welcome screen. </para> +<screenshot> +<screeninfo>CUPS server configuration dialog: welcome screen</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration1_welcome.png" +format="PNG"/></imageobject> +<textobject> +<phrase>The dialog to configure the &CUPS; server: welcome +screen</phrase></textobject> +<caption><para>The dialog to configure the &CUPS; server: welcome +screen</para></caption> +</mediaobject> +</screenshot> + +<para>To select the default setting of any item just enable the +checkbox on the right side of the screen. To set an item to a +different value, disable the checkbox and then go on to do the setting +you want on the left side of the screen.</para> + +<para>The complete server configuration includes:</para> + +<itemizedlist> +<listitem> +<para><link linkend="server-general-configuration"><guilabel>Server</guilabel> +General Configuration</link></para> +</listitem> +<listitem> +<para><link linkend="server-logging-configuration">Server +<guilabel>Log</guilabel>ging Configuration</link></para> +</listitem> +<listitem> +<para><link +linkend="server-directories-configuration">Server +<guilabel>Folders</guilabel> and Path Definitions</link></para> +</listitem> +<listitem> +<para><link linkend="server-configuration">Server +<guilabel>HTTP</guilabel> Configuration</link></para> +</listitem> +<listitem> +<para><link linkend="server-encryption-support-configuration">Server +<guilabel>Encryption</guilabel> and Certificate Support +Configuration</link></para> +</listitem> +<listitem> +<para><link linkend="server-miscellaneous-configuration">Server +<guilabel>Misc</guilabel>ellaneous Configuration</link></para> +</listitem> +<listitem> +<para><guilabel>Network</guilabel> General Configuration</para> +</listitem> +<listitem> +<para><link linkend="network-clients-configuration">Network +<guilabel>Clients</guilabel> Configuration</link></para> +</listitem> +<listitem> +<para><link +linkend="browsing-general-configuration"><guilabel>Browsing</guilabel> +General Configuration</link></para> +</listitem> +<listitem> +<para><link linkend="browsing-connection-configuration">Browsing +<guilabel>Connection</guilabel> Configuration</link></para> +</listitem> +<listitem> +<para><link +linkend="browsing-masks-configuration">Browsing +<guilabel>Masks</guilabel> Configuration</link></para> +</listitem> +<listitem> +<para><link linkend="browsing-timeouts-configuration">Browsing +<guilabel>Timeouts</guilabel> Configuration</link></para> +</listitem> +<listitem> +<para><link linkend="browsing-relay-configuration">Browsing +<guilabel>Relay</guilabel> Configuration</link></para> +</listitem> +<listitem> +<para><link +linkend="security-configuration"><guilabel>Security</guilabel> +Configuration</link></para> +</listitem> +</itemizedlist> + +<para>Each of these configuration items will be described in the +following sections of the manual.</para> + +</sect1> + +<sect1 id="server-general-configuration"> +<title>Server General Configuration</title> + +<para>The server general configuration is done on this screen. It +includes:</para> + +<itemizedlist> +<listitem><para><guilabel>Server name</guilabel></para></listitem> +<listitem><para><guilabel>Administrators email</guilabel></para></listitem> +<listitem><para><guilabel>Server user</guilabel></para></listitem> +<listitem><para><guilabel>Server group</guilabel></para></listitem> +<listitem><para><guilabel>Remote user name</guilabel></para></listitem> +</itemizedlist> + +<para>The tab window to configure the &CUPS; server general settings +lets you the change the default values. Click on the little question +mark and then on one of the fields to get a <quote>Quick Help</quote> +about the meaning of the setting.</para> + +<para>If you are unsure, leave alone and turn to the original &CUPS; +documentation first. If your &CUPS; daemon is already running, it is +readable from the &konqueror; by pointing it to &URL; <ulink +url="http://localhost:631/documentation.html"> +http://localhost:631/documentation.html</ulink>.</para> + +<para>There, first <quote>make friends</quote> with the Software +Administrator Manual. Otherwise, for example, if the &CUPS; daemon is +not running, try looking in your local file system, by default at +<filename class="directory">/usr/share/doc/cups/</filename> or +<filename>/usr/share/doc/cups/documentation.html</filename>.</para> + +<screenshot> +<screeninfo>&CUPS; server general configuration dialog: ServerName, AdminMail, +ServerUser, ServerGroup, RemoteUserName</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration2_general.png" +format="PNG"/></imageobject> +<textobject> +<phrase>The dialog to configure the &CUPS; server general settings: +ServerName, AdminMail, ServerUser, ServerGroup, RemoteUserName +</phrase></textobject> +</mediaobject> +</screenshot> + +<variablelist> +<varlistentry> +<term><guilabel>Server Name</guilabel></term> +<listitem> +<para>The hostname of your server, as advertised to the world. By +default, &CUPS; will use the hostname of the system. To set the +default server usd by clients, see the +<filename>client.conf</filename> file.</para> + +<informalexample> +<para>For example, enter <userinput>myhost.domain.com</userinput></para> +</informalexample> + +<para>This is the hostname that is reported to clients. Should you +ever encounter strange problems in accessing the server, put here its +<acronym>IP</acronym> address for troubleshooting. This way you +eliminate any potential name resolution problems; and you can more +easily nail the real problem down.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Administrators email</guilabel></term> +<listitem> +<para>This is the email address to send all complaints or problems +to. By default &CUPS; will use <quote>root@hostname</quote>.</para> + +<informalexample> +<para>For example, enter +<userinput>[email protected]</userinput>.</para> +</informalexample> + +<note> +<para>Contrary to what the quickhelp suggests, it is also legal to +send an email full of praise and enthusiasm about &CUPS; and +&kdeprint; to the server administrator.</para> +</note> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Server User</guilabel></term> +<listitem> +<para>The user the server runs under. Normally this must be +<systemitem class="username">lp</systemitem>, however you can +configure things for another user if needed.</para> + +<note> +<para>The server must be initially run as root to support the default +<acronym>IPP</acronym> port of 631. It changes users whenever an +external program is run.</para> +</note> + +<informalexample> +<para>Enter for example <userinput>lp</userinput>.</para> +</informalexample> + +<para>This is the &UNIX; user account for filters and +<acronym>CGI</acronym> programs to run under. <acronym>CGI</acronym> +programs are responsible for showing you the nice web administration +interface accessible via <ulink +url="http://localhost:631/">http://localhost:631/</ulink>).</para> + +<warning> +<para>There is no need to set the <guilabel>User</guilabel> directive +to <systemitem class="username">root</systemitem>, so never do this, +as it only involves dangers. Should anyone discover security +vulnerabilities in one of the used file filters, printer drivers or +<acronym>CGI</acronym> programs, he could remotely execute arbitrary +commands on your system with root user privileges. Always use an +unprivileged account for the server directive +<guilabel>User</guilabel>.</para> +</warning> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Server group</guilabel></term> +<listitem> +<para>The group the server runs under. Normally this must be +<systemitem class="groupname">sys</systemitem>, however you can +configure things for another group as needed.</para> + +<informalexample> +<para>Enter for example <userinput>sys</userinput>.</para> +</informalexample> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Remote user name</guilabel></term> +<listitem> +<para>The name of the user assigned to unauthenticated accesses from +remote systems. By default <userinput>remroot</userinput>.</para> + +<para>This name will appear in log files and in queries about the job +owner &etc;, for all resources and locations of the &CUPS; server that +are configured to allow access <emphasis>without</emphasis> +authentication. Authenticated entries will carry the authenticated +names.</para> +</listitem> +</varlistentry> +</variablelist> +</sect1> + +<sect1 id="server-logging-configuration"> +<title>Server Logging Configuration</title> + +<para>The server logging configuration is done on this screen. It +includes:</para> + +<itemizedlist> +<listitem><para><guilabel>Access log file</guilabel> setting</para></listitem> +<listitem><para><guilabel>Error log file</guilabel> setting</para></listitem> +<listitem><para><guilabel>Page log</guilabel> file setting</para></listitem> +<listitem><para><guilabel>Log level</guilabel> setting</para></listitem> +<listitem><para><guilabel>Max log file size</guilabel> +setting</para></listitem> +</itemizedlist> + +<para>This is an important screen for you. Should you ever encounter +problems: here is the place to set the Log level to +<quote>debug</quote>, restart the &CUPS; daemon and then look at the +Error log file defined here for entries that might give you an insight +to the trouble.</para> + +<screenshot> +<screeninfo>&CUPS; server configuration dialog: <guilabel>Server +logging</guilabel> </screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration3_logging.png" +format="PNG"/></imageobject> +<textobject> +<phrase>The dialog to configure the &CUPS; server: <guilabel>Server +logging</guilabel></phrase></textobject> +</mediaobject> +</screenshot> + +<variablelist> +<varlistentry> +<term><guilabel>Access log file</guilabel></term> +<listitem> +<para>This is where accesses to the server are logged. If this does +not start with a leading <literal>/</literal>, then it is assumed to +be relative to the server root.</para> + +<para>You can also use the special name <userinput>syslog</userinput> +to send the output to the syslog file or daemon.</para> + +<informalexample> +<para>Enter a path, for example +<userinput><filename>/var/log/cups/acces_log</filename></userinput>.</para> +</informalexample> + +<para>The format of this file is stored in the so-called <quote>Common +Log Format</quote>. This way you can use programs such as +<application>Webalyzer</application> or any other Web access reporting +tool to generate reports on the &CUPS; server activities.</para> + +<para>To include the server name in the file name use a +<token>%s</token> in the name. Example: +<userinput><filename>/var/log/cups/access_log-%s</filename></userinput>.</para> + +<screen><prompt>kurt@transmeta:~ ></prompt><userinput><command>tail</command> <parameter>/var/log/cups/access_log</parameter></userinput> +<computeroutput> +127.0.0.1 - - [04/Aug/2001:20:11:39 +0100] "POST /printers/ HTTP/1.1" 200 109 +127.0.0.1 - - [04/Aug/2001:20:11:39 +0100] "POST /admin/ HTTP/1.1" 401 0 +127.0.0.1 - - [04/Aug/2001:20:11:39 +0100] "POST / HTTP/1.1" 200 210 +127.0.0.1 - - [04/Aug/2001:20:11:39 +0100] "GET /ppd/DANKA_P450.ppd HTTP/1.1" 200 51021 +127.0.0.1 - - [04/Aug/2001:20:11:39 +0100] "POST /jobs/ HTTP/1.1" 200 246 +10.160.16.45 - - [04/Aug/2001:20:11:39 +0100] "GET /printers/DANKA_P450 HTTP/1.0" 200 0 +127.0.0.1 - - [04/Aug/2001:20:11:39 +0100] "POST / HTTP/1.1" 200 80 +127.0.0.1 - - [04/Aug/2001:20:11:39 +0100] "POST / HTTP/1.1" 200 139 +10.160.16.45 - - [04/Aug/2001:20:11:40 +0100] "GET /cups.css HTTP/1.0" 200 198 +127.0.0.1 - - [04/Aug/2001:20:11:40 +0100] "POST / HTTP/1.1" 200 139 +10.160.16.45 - - [04/Aug/2001:20:11:39 +0100] "GET /printers/DANKA_P450 HTTP/1.0" 200 7319 +10.160.16.45 - - [04/Aug/2001:20:11:40 +0100] "GET /images/title-logo.gif HTTP/1.0" 200 5729 +</computeroutput></screen> + +<para>You see a separate line for each single access, showing the +<acronym>IP</acronym> address of the accessing client, date and time +of access, method of access (<command>POST</command> or +<command>GET</command>), the requested ressource, the &HTTP; version +used by the client, status code and the number of transferred +bytes. Status code <errorcode>200</errorcode> means +<errorname>successful-OK</errorname> the <errorcode>401</errorcode> in +the above example was an <errorname>unauthorized access</errorname> +which was denied. For a detailed explanation of the log format go to +<ulink url="http://localhost:631/sam.html#7_6_1">the &CUPS; Software +Administrator Manual</ulink>.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Error log file</guilabel></term> +<listitem> +<para>If this does not start with a leading <literal>/</literal>, then +it is assumed to be relative to the server root. The default setting +is <filename>/var/log/cups/error_log</filename>.</para> + +<para>You can also use the special name <userinput>syslog</userinput> +to send the output to the syslog file or daemon.</para> + +<informalexample> +<para>Enter the path, for example +<userinput><filename>/var/log/cups/error_log</filename></userinput>.</para> +</informalexample> + +<para>The error log excerpt below shows you the part logged for printing the test page +with the default setting of <guilabel>Log level</guilabel> to +<quote>info</quote>. For an explanation of the <guilabel>Log +Level</guilabel> setting see further below.</para> + +<screen><prompt>kurt@transmeta:~ ></prompt><userinput><command> tail </command> <parameter>/var/log/cups/error_log</parameter></userinput> +<computeroutput> +I [04/Aug/2001:23:15:10 +0100] Job 213 queued on 'DANKA_P450' by 'root' +I [04/Aug/2001:23:15:10 +0100] Started filter /usr/lib/cups/filter/pstops (PID 18891) for job 213. +I [04/Aug/2001:23:15:10 +0100] Started backend /usr/lib/cups/backend/lpd (PID 18892) for job 213. +</computeroutput></screen> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Page log file</guilabel></term> +<listitem> +<para>If this does not start with a leading <literal>/</literal> then +it is assumed to be relative to the server root. The default is +<filename>/var/log/cups/page_log</filename></para> + +<para>You can also use the special name <userinput>syslog</userinput> +to send the output to the syslog file or daemon.</para> + +<informalexample> +<para>Enter the path, for example +<userinput><filename>/var/log/cups/page_log</filename></userinput>.</para> +</informalexample> +<para>The page log file has a line for every single page of every job +printed.</para> + +<para> Here is what some entries look like:</para> + +<screen><prompt>kurt@transmeta:~ ></prompt><userinput><command> tail </command> <parameter>/var/log/cups/page_log</parameter></userinput> +<computeroutput> +GIMP_print_stp_HP kdetest 201 [03/Aug/2001:03:18:03 +0100] 4 1 +GIMP_print_stp_HP kdetest 201 [03/Aug/2001:03:18:03 +0100] 5 1 +GIMP_print_stp_HP kdetest 202 [03/Aug/2001:11:46:49 +0100] 1 1 +GIMP_print_stp_HP kdetest 203 [03/Aug/2001:11:46:54 +0100] 1 1 +DANKA_infotec_P450 kurt 204 [04/Aug/2001:03:29:00 +0100] 1 33 +DANKA_infotec_P450 kurt 204 [04/Aug/2001:03:29:00 +0100] 2 33 +DANKA_infotec_P450 kurt 204 [04/Aug/2001:03:29:00 +0100] 3 33 +DANKA_infotec_P450 kurt 204 [04/Aug/2001:03:29:00 +0100] 4 33 +DANKA_infotec_P450 root 205 [04/Aug/2001:19:12:34 +0100] 1 14 +DANKA_infotec_P450 root 206 [04/Aug/2001:19:15:20 +0100] 1 1 +</computeroutput></screen> + +<para>In this excerpt of the file you find information on the name of +the printers (<systemitem +class="resource">GIMP_print_stp_HP</systemitem> and <systemitem +class="resource">DANKA_infotec_P450</systemitem>) used through this +server, the user names (<systemitem +class="username">kdetest</systemitem>, <systemitem +class="username">kurt</systemitem> and <systemitem +class="username">root</systemitem>), the job-IDs (<quote>201</quote> +to <quote>205</quote>), time of printing, page number inside the job +and the number of copies for the pages. For example, job-ID 204 had 4 +pages and 33 copies printed, job-ID 205 had 14 copies of just 1 page) +.</para> + +<note> +<para>&CUPS; is dependent (for its calculation of the number of pages +in a job) on passing the &PostScript; through the +<quote>pstops</quote> filter. See the <link +linkend="architecture-diagram">&kivio; Flowchart</link> on the &CUPS; +filter architecture for an idea about were this filter fits into the +whole printing process). More, <command>pstops</command> depends for +the counting on a <acronym>DSC</acronym> conforming +(<acronym>DSC</acronym> is Document Structuring Conventions, a +standard defined by Adobe) to be sent by the client. In most cases +this is working.</para> + +<para>However, this page accounting does not work for any +<quote>raw</quote> printer queues (as those, by definition, don't use +any filtering on the &CUPS; host and are by-passing +<command>pstops</command>.) Every job going through a +<quote>raw</quote> queue is counted as a 1-page-job (with possibly +multiple copies). This is especially true for all Jobs send from +&Microsoft; &Windows; clients via <application>Samba</application> to +the &CUPS; server, as those jobs are already arriving in the correct +format for the printer, because the clients use the original printer +driver.</para> +</note> + +<note> +<para>I am still looking for someone who will write a nice &CUPS; page +log analysing tool. It should generate a report with a graphical +output similar to the <application>Webalizer</application>'s access +log reports. This way you could have nice statistics to be used for +accounting about usage of printers, load dependent on daytime or +weekday, users &etc; Anyone?</para> +</note> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Log level</guilabel></term> +<listitem> +<para>This setting controls the number of messages logged to the error +log file. It can be one of the following:</para> + +<variablelist> +<varlistentry> +<term>debug2</term> +<listitem> +<para>Log everything.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term>debug</term> +<listitem> +<para>Log almost everything.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term>info</term> +<listitem> +<para>Log all requests and state changes.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term>warn</term> +<listitem> +<para>Log errors and warnings.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term>error</term> +<listitem> +<para>Log only errors.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term>none</term> +<listitem> +<para>Log nothing.</para> +</listitem> +</varlistentry> + +</variablelist> + +<para>If you need to troubleshoot (or if you want to study the inner +workings of &CUPS;), set the log level to debug or debug2. Then the +error_log will have a lot more entries (not just errors, but also +informational entries).</para> + +<para>You can use this to watch <quote>live</quote> what &CUPS; is +doing when you send a print job. In a &konsole; type:</para> + +<screen><prompt>kurt@transmeta:~ ></prompt><userinput><command>tail</command> <option>-f</option> <option>-n</option><parameter>100</parameter> <parameter>/var/log/cups/error_log</parameter></userinput></screen> + +<para>This will give you the last 100 lines (<option>-n</option> +<parameter>100</parameter>) of the file onto the screen and a +<quote>realtime</quote> update (<option>-f</option>)of what is +happening. The following listing shows the printing of a test page +(some pieces have been cut off for space reasons... Try it yourself if +you need more info):</para> + +<screen><computeroutput> +I [04/Aug/2001:23:15:12 +0100] Job 214 queued on 'DANKA_P450' by 'root' +D [04/Aug/2001:23:15:12 +0100] StartJob(214, 08426fe0) +D [04/Aug/2001:23:15:12 +0100] StartJob() id = 214, file = 0/1 +D [04/Aug/2001:23:15:12 +0100] job-sheets=none,none +D [04/Aug/2001:23:15:12 +0100] banner_page = 0 +D [04/Aug/2001:23:15:12 +0100] StartJob: argv = "DANKA_P450","214","root","KDE Print Test", +[....] +D [04/Aug/2001:23:15:12 +0100] StartJob: envp = "PATH=/usr/lib/cups/filter:/bin:/usr/bin", [....] +D [04/Aug/2001:23:15:12 +0100] StartJob: statusfds = 5, 6 +D [04/Aug/2001:23:15:12 +0100] StartJob: filterfds[1] = 7, -1 +D [04/Aug/2001:23:15:12 +0100] StartJob: filter = "/usr/lib/cups/filter/pstops" +D [04/Aug/2001:23:15:12 +0100] StartJob: filterfds[0] = 8, 9 +D [04/Aug/2001:23:15:12 +0100] start_process("/usr/lib/cups/filter/pstops", [....] +I [04/Aug/2001:23:15:12 +0100] Started filter /usr/lib/cups/filter/pstops (PID 18991) for job 214. +D [04/Aug/2001:23:15:12 +0100] StartJob: backend = "/usr/lib/cups/backend/lpd" +D [04/Aug/2001:23:15:12 +0100] StartJob: filterfds[1] = -1, 7 +D [04/Aug/2001:23:15:12 +0100] start_process("/usr/lib/cups/backend/lpd", [....] +I [04/Aug/2001:23:15:12 +0100] Started backend /usr/lib/cups/backend/lpd (PID 18992) for job 214. +D [04/Aug/2001:23:15:12 +0100] Page = 595x842; 15,16 to 580,833 [....] </computeroutput></screen> + +<para>The lines tagged <quote>D</quote> at the beginning are debug +level entries, the ones tagged <quote>I</quote> are there in +<quote>info</quote> level.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Max log file size</guilabel></term> +<listitem> + +<para>Controls the maximum size of each log file before they are +rotated. Defaults to 1048576 (1 Mb). Set this to 0 to disable log +rotation.</para> + +<informalexample> +<para>Enter an size in bytes, for example <userinput>1048576</userinput></para> +</informalexample> + +</listitem> +</varlistentry> +</variablelist> +</sect1> + +<sect1 id="server-directories-configuration"> +<title>Server Folders Configuration</title> + +<para>The dialog to configure the &CUPS; server. Different +folders are to be set here. Normally you don't need to change +anything in this section. In case you play around with fancy +(TrueType, &PostScript; or other) fonts on your system, this qis the +place to do the settings for using those fonts when printing. Server +folder settings include:</para> + +<itemizedlist> +<listitem> +<para><guilabel>Executables</guilabel>: where to find the server +executables</para> +</listitem> +<listitem> +<para><guilabel>Configuration</guilabel>: where to find the server +configuration files</para> +</listitem> +<listitem> +<para><guilabel>Data</guilabel>: where to find the server data +files</para> +</listitem> +<listitem> +<para><guilabel>Temporary files</guilabel>: where to put the server +temporary print files </para> +</listitem> +<listitem> +<para><guilabel>Temporary Requests</guilabel>: where to find the +server </para> +</listitem> +<listitem> +<para><guilabel>Font Path</guilabel>: where to find the +server fonts</para> +</listitem> +</itemizedlist> +<screenshot> +<screeninfo>&CUPS; server configuration dialog: &HTTP; configuration</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration4_directories.png" +format="PNG"/></imageobject> +<textobject> +<phrase>The dialog to configure the &CUPS; server: &HTTP; configuration</phrase></textobject> +</mediaobject> +</screenshot> + +<variablelist> +<varlistentry> +<term><guilabel>Executables</guilabel></term> +<listitem> +<para>The root folder for the scheduler executables. By default +this is <filename class="directory">/usr/lib/cups</filename> (or +<filename class="directory">/usr/lib32/cups</filename> on IRIX +6.5)</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Configuration</guilabel></term> +<listitem> +<para>The root folder for the scheduler. By default, <filename +class="directory">/etc/cups</filename>.</para> +<para>On the authors SuSE system, this is <filename +class="directory">/usr/share/doc/cups</filename>. It contains all the +<acronym>HTML</acronym> or <acronym>PDF</acronym> documentation for +&CUPS; which is available through the Web interface at <ulink +url="http://localhost:631/documentation.html"> +http://localhost:631/documentation.html</ulink></para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Data</guilabel></term> +<listitem> +<para>The root folder for the &CUPS; data files. By default this +is <filename class="directory">/usr/share/cups</filename></para> +<para>It contains such things as banners, charsets, data, drivers, +fonts, and <command>pstoraster</command> templates.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Temporary files</guilabel></term> +<listitem> +<para>The folder to put temporary files in. This folder must be +writable by the user defined on the previous screen. This defaults to +either <filename class="directory">/var/spool/cups/tmp</filename> or +the value of the <envar>TMPDIR</envar> environment variable.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Temporary Requests</guilabel></term> +<listitem> +<para>The folder where request files are stored. By default this +is <filename class="directory">/var/spool/cups</filename></para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Font path</guilabel></term> +<listitem> +<para>The place to configure the &CUPS; server for handling your fancy +fonts (TrueType or &PostScript;). &CUPS; will look here for fonts to +embed in printfiles. This currently only affects the +<command>pstoraster</command> filter, and the default is <filename +class="directory">/usr/share/cups/fonts</filename>.</para> + +<para>To specify more than one folder, list them with double colons as +separator. Do it like this:</para> + +<informalexample> +<para><userinput>/path/to/first/fontdir/:/path/to/second/fontdir/:/path/to/last/fontdir/</userinput></para> +</informalexample> + +<para>For the Font path directive to work as intended, the application +that wants to print needs to:</para> + +<itemizedlist> +<listitem> +<para>Either correctly reference its desired fonts in the header of the +generated &PostScript;</para> +</listitem> +<listitem> +<para>Or embed the font into the &PostScript; file.</para> +</listitem> +</itemizedlist> + +<para><emphasis>Referencing</emphasis> the font by name leaves it up +to the <acronym>RIP</acronym> and print device to respect and actually +use it. <acronym>RIP</acronym> or printer <emphasis>can</emphasis> +only use the desired font, if it is available on the system.</para> + +<para> In the case of a &PostScript; printer, this needs to be a +printer-resident font. If the printers doesn't have this font, it will +try and replace it by an adequately similar font.</para> + +<para>In the case of a non &PostScript; printer, this is done by +&CUPS; and its <acronym>RIP</acronym>-ing filtering system. &CUPS; +will use the font path directive to grab the correct font when +<acronym>RIP</acronym>-ing the &PostScript; in the +<command>pstoraster</command> filter. </para> + +<para>In the case of a &PostScript; output device, &CUPS; is just +spooling the file (actually, it is passing it through the +<command>pstops</command> filter for accounting or n-up purposes), not +<quote>working</quote> on it. Therefore, if you print to a +&PostScript; printer it is solely the printer's responsibility to use +the font asked for. It can't, if the font is neither loaded into the +printer nor embedded in the &PostScript;. +</para> +</listitem> +</varlistentry> +</variablelist> + +</sect1> +<sect1 id="server-configuration"> +<title>Server <acronym>HTTP</acronym> +Configuration</title> + +<para>The dialog to configure the &CUPS; server &HTTP; settings +is shown here. </para> +<para>&CUPS; server &HTTP; settings are the following ones: </para> +<itemizedlist> +<listitem><para>the <guilabel>Document folder</guilabel></para></listitem> +<listitem><para>the <guilabel>Default Language</guilabel></para></listitem> +<listitem><para>the <guilabel>Default Charset</guilabel></para></listitem> +</itemizedlist> + +<screenshot> +<screeninfo>Dialog to configure the &CUPS; server &HTTP; settings +</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration5_HTTP.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Dialog to configure the &CUPS; server &HTTP; settings +</phrase></textobject> +</mediaobject> +</screenshot> + +<variablelist> +<varlistentry> +<term><guilabel>Document folder</guilabel></term> +<listitem> +<para>The root folder for &HTTP; documents that are served. By +default the compiled in folder, <filename +class="directory">/usr/share/cups/doc</filename></para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Default Language</guilabel></term> +<listitem> +<para>The default language, if not specified by the browser. If not +specified, the current locale is used.</para> +<informalexample> +<para>Use the two letter locale codes, for example +<userinput>en</userinput> or <userinput>de</userinput>.</para> +</informalexample> +<!-- available languages? --> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Default charset</guilabel></term> +<listitem> +<para>The default character set to use. If not specified, this +defaults to UTF-8. This can also be overridden directly in the +<acronym>HTML</acronym> documents.</para> +</listitem> +</varlistentry> +</variablelist> +</sect1> + +<sect1 id="server-encryption-support-configuration"> +<title><guilabel>Server encryption support configuration</guilabel></title> + +<para>This is the dialog to configure the &CUPS; server security +settings. The server encryption support settings are these: </para> + +<itemizedlist> +<listitem><para><guilabel>Server certificate</guilabel>: the file to +read containing the server's certificate</para></listitem> +<listitem><para>Server key: the file to read containing the server's +key</para></listitem> +</itemizedlist> +<screenshot> +<screeninfo>&CUPS; server configuration dialog: security overview</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration6_encryption.png" +format="PNG"/></imageobject> +<textobject> +<phrase>The dialog to configure the &CUPS; server: security settings</phrase></textobject> +</mediaobject> +</screenshot> + +<variablelist> +<varlistentry> +<term><guilabel>Server certificate</guilabel></term> +<listitem> +<para>The file to read containing the server's certificate. Defaults +to <filename>/etc/cups/ssl/server.crt</filename>.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Server key</guilabel></term> +<listitem> +<para>The file to read containing the server's key. Defaults to +<filename>/etc/cups/ssl/server.key</filename></para> +</listitem> +</varlistentry> +</variablelist> + +</sect1> + +<sect1 id="server-miscellaneous-configuration"> +<title>Server Miscellaneous Configuration</title> + +<para>The dialog to configure the &CUPS; server miscellaneous settings +is shown here. The following server settings are done through this +screen:</para> + +<itemizedlist> +<listitem><para><guilabel>Preserve job history</guilabel>: whether to +preserve a job history for later re-view</para></listitem> +<listitem><para><guilabel>Preserve job files</guilabel>: whether to +preserve fully <acronym>RIP</acronym>-ed job files for later +re-print</para></listitem> +<listitem><para><guilabel>Printcap file</guilabel>: setting the name +of and the path to a printcap file</para></listitem> +<listitem><para><guilabel>RIP Cache</guilabel>: setting the size of +the <acronym>RIP</acronym> cache in memory</para></listitem> +<listitem><para><guilabel>Filter Limit</guilabel>: defining a filter +limit</para></listitem> +</itemizedlist> + +<screenshot> +<screeninfo>Dialog to configure the &CUPS; server miscellaneous settings</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration7_miscellanious.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Dialog to configure the &CUPS; server miscellaneous +settings</phrase></textobject> +</mediaobject> +</screenshot> + +<variablelist> +<varlistentry> +<term><guilabel>Preserve job history (after completion)</guilabel></term> +<listitem> +<para>Whether or not to preserve the job history after a job is +completed, canceled, or stopped. The default is yes</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Preserve job file (after completion)</guilabel></term> +<listitem> +<para>Whether or not to preserve the job files after a job is +completed, canceled, or stopped. The default is no.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Printcap file</guilabel></term> +<listitem> +<para>The name of the printcap file. The default is no filename. +Leave this blank, to disable printcap file generation.</para> +<para>The printcap setting is only needed to satisfy older +applications in need of such a file.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>RIP cache</guilabel></term> +<listitem> +<para>The amount of memory that each <acronym>RIP</acronym> should use +to cache bitmaps. The value can be any real number, followed by +<quote>k</quote> for kilobytes, <quote>m</quote> for megabytes, +<quote>g</quote>for gigabytes, or <quote>t</quote> for tiles, where +one tile is 256 x 256 pixels. The default value is 8m.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Filter limit</guilabel></term> +<listitem> +<para>Sets the maximum cost of all job filters that can be run at the +same time. A limit of 0 means no limit. A typical job may need a +filter limit of at least 200. Limits less than the minimum required +by a job force a single job to be printed at any time. The default +limit is 0 (unlimited).</para> +</listitem> +</varlistentry> +</variablelist> +</sect1> + +<sect1 id="network-general-configuration"> +<title>Network General Configuration</title> + +<para>The dialog to configure the &CUPS; server network settings is +shown here. It includes:</para> + +<itemizedlist> +<listitem><para><guilabel>Look for hostname on IP +addresses</guilabel></para></listitem> +<listitem><para><guilabel>Port</guilabel></para></listitem> +<listitem><para><guilabel>Max request size</guilabel></para></listitem> +<listitem><para><guilabel>Timeout</guilabel></para></listitem> +</itemizedlist> + +<screenshot> +<screeninfo>Dialog to configure the &CUPS; server network settings</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration8_networkgeneral.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Dialog to configure the &CUPS; server network +settings</phrase></textobject> +</mediaobject> +</screenshot> +<variablelist> +<varlistentry> +<term><guilabel>Look for hostname on IP addresses</guilabel></term> +<listitem> +<para>Whether or not to do lookups on <acronym>IP</acronym> addresses +to get a fully-qualified hostname. This defaults to off, for +performance reasons.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Port</guilabel></term> +<listitem> +<para>Enter here Ports and addresses that the server will listen to. +The default port 631 is reserved for the Internet Printing Protocol, +and is what we use here.</para> +<para>You can have multiple entries, to listen to more than one port +or address, or to restrict access.</para> +<note> +<para>Unfortunately, most web browsers don't support +<acronym>TLS</acronym> or &HTTP; upgrades for encryption. If you want +to support web-based encryption, you'll probably need to listen on +port 443, the <acronym>HTTPS</acronym> port.</para> +</note> +<para>Use the <guibutton>Add</guibutton> and +<guibutton>Remove</guibutton> buttons to add and remove entries from +the list.</para> +<informalexample> +<para>You can enter ports on their own, ⪚ +<userinput>631</userinput>, or hostnames with ports, ⪚ +<userinput>myhost:80</userinput> or <userinput>1.2.3.4:631</userinput>.</para> +</informalexample> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Max request size</guilabel></term> +<listitem> +<para>Controls the maximum size of &HTTP; requests and print files. +The default setting is 0, which disables this feature.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Timeout</guilabel></term> +<listitem> +<para>The timeout (in seconds) before requests time out. The default +is 300 seconds.</para> +</listitem> +</varlistentry> +</variablelist> + +</sect1> + +<sect1 id="network-clients-configuration"> +<title>Network Clients Configuration</title> + +<para>The dialog to configure the &CUPS; network client settings is +shown here. It includes:</para> + +<itemizedlist> +<listitem><para><guilabel>Accept "Keep Alive" +requests</guilabel></para></listitem> +<listitem><para>KeepAliveTimeout:</para> </listitem> +<listitem><para>MaxClients: </para></listitem> +</itemizedlist> +<screenshot> +<screeninfo>dialog to configure the &CUPS; network client settings</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration9_networkclients.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Dialog to configure the &CUPS; network client settings</phrase></textobject> +</mediaobject> +</screenshot> + +<variablelist> +<varlistentry> +<term><guilabel>Accept "Keep Alive" requests</guilabel></term> +<listitem> +<para>Whether or not to support the Keep-Alive connection option. The +default is on.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Keep alive timeout</guilabel></term> +<listitem> +<para>The timeout (in seconds) before Keep-Alive connections are +automatically closed. The default is 60 seconds.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Max number of clients</guilabel></term> +<listitem> +<para>Controls the maximum number of simultaneous clients that will be +handled. Defaults to 100.</para> +</listitem> +</varlistentry> +</variablelist> + +</sect1> + +<sect1 id="browsing-general-configuration"> +<title>Browsing General Configuration</title> + +<para>The dialog to configure the &CUPS; browsing general settings +is shown here. It includes: </para> + +<itemizedlist> +<listitem><para><guilabel>Enable browsing</guilabel></para></listitem> +<listitem><para><guilabel>Use short names when +possible</guilabel></para></listitem> +<listitem><para><guilabel>Use implicit +classes</guilabel></para></listitem> +</itemizedlist> + + +<screenshot> +<screeninfo>Dialog to configure the &CUPS; browsing general +settings</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration10_browsinggeneral.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Dialog to configure the &CUPS; browsing general +settings</phrase></textobject> +</mediaobject> +</screenshot> + +<variablelist> +<varlistentry> +<term><guilabel>Enable browsing</guilabel></term> +<listitem> +<para>Whether or not to broadcast printer information to other &CUPS; +servers. Enabled by default.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Use short names when possible</guilabel></term> +<listitem> +<para>Whether or not to use <quote>short</quote> names for remote +printers when possible (⪚ <systemitem +class="resource">printer</systemitem> instead of <systemitem +class="resource">printer@host</systemitem>). Enabled by +default.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Use implicit classes</guilabel></term> +<listitem> +<para>Whether or not to use implicit classes.</para> +<para>Printer classes can be specified explicitly, in the +<filename>classes.conf</filename> file, implicitly based upon the +printers available on the <acronym>LAN</acronym>, or both.</para> +<para>When Implicit classes are enabled, printers on the +<acronym>LAN</acronym> with the same name (⪚ <systemitem +class="resource">Acme-LaserPrint-1000</systemitem>) will be put into +a class with the same name. This allows you to setup multiple +redundant queues on a <acronym>LAN</acronym> without a lot of +administrative difficulties. If a user sends a job to <systemitem +class="resource">Acme-LaserPrint-1000</systemitem>, the job will go to +the first available queue.</para> +<para>This option is enabled by default.</para> +</listitem> +</varlistentry> +</variablelist> + +</sect1> +<sect1 id="browsing-connection-configuration"> +<title>Browsing Connection Configuration</title> + +<para>The dialog to configure the &CUPS; server browsing connection is +shown here. Browsing connection settings include:</para> + +<itemizedlist> +<listitem><para><guilabel>Broadcast addresses</guilabel>: The +(<acronym>UDP</acronym>) broadcast address to transmit printer +information to</para></listitem> +<listitem><para><guilabel>Broadcast Port</guilabel>: The port number +to use for broadcasting</para></listitem> +<listitem><para><guilabel>Poll addresses</guilabel>: The address(es) +to poll for information about printers on servers that might not +broadcast (or whose broadcasts might not reach your +<acronym>LAN</acronym> due to routers in between).</para></listitem> +</itemizedlist> + +<screenshot> +<screeninfo>Dialog to configure the &CUPS; server browsing +connection</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration11_browsingconnections.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Dialog to configure the &CUPS; server browsing +connection</phrase></textobject> +</mediaobject> +</screenshot> + +<variablelist> +<varlistentry> +<term><guilabel>Broadcast addresses</guilabel></term> +<listitem> +<para>After pressing the <guibutton>Add</guibutton> button, you will +see the following dialog to enter a new value for outgoing +broadcasting browse packets. It is the same kind of dialog as for +adding other &CUPS; server addresses to be polled for printer +information.</para> + +<screenshot> +<screeninfo>Dialog to enter a new value for broadcasting browse +packets to</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfig_browsingmasks_add_button.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Dialog to enter a new value for broadcasting browse packets +to</phrase></textobject> +</mediaobject> +</screenshot> + +<para>This option specifies a broadcast address to be used. By +default, browsing information is broadcast to all active +interfaces.</para> + +<note> +<para>&HP-UX; 10.20 and earlier do not properly handle broadcast +unless you have a Class A, B, C or D netmask (&ie;, there is no +<acronym>CIDR</acronym> support).</para> +</note> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Broadcast port</guilabel></term> +<listitem> +<para>The port used for <acronym>UDP</acronym> broadcasts. By default +this is the <acronym>IPP</acronym> port; if you change this, you need +to do it on all servers. Only one BrowsePort is recognized.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Poll addresses</guilabel></term> +<listitem> +<para>Poll the named server(s) for printers.</para> +</listitem> +</varlistentry> +</variablelist> + +</sect1> +<sect1 id="browsing-masks-configuration"> +<title>Browsing Masks Configuration</title> + +<para>The dialog to configure the &CUPS; server allowed and/or denied browse +packets from other servers is shown here. </para> + +<itemizedlist> +<listitem><para><guilabel>Browse allow</guilabel>: </para></listitem> +<listitem><para><guilabel>Browse deny</guilabel>: </para></listitem> +<listitem><para><guilabel>Browse order</guilabel>: </para></listitem> +</itemizedlist> + +<screenshot> +<screeninfo>Dialog to configure the &CUPS; server allowed and/or +denied browse packets from other servers</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration11_browsingmasks.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Dialog to configure the &CUPS; server allowed and/or denied +browse packets from other servers</phrase></textobject> +</mediaobject> +</screenshot> + +<variablelist> +<varlistentry> +<term><guilabel>Add Browse Address</guilabel> dialog</term> +<listitem> +<para>The dialog to enter a new value for the address of another +&CUPS; server to accept browse packets from is shown here. It is opened +by clicking on the <guibutton>Add...</guibutton> button beside the +field named <guilabel>Browse Allow:</guilabel>. It is the same dialog +as for adding <quote>denied</quote> broadcast sending +addresses.</para> + +<para>The dialog to enter a new value for the address of another +&CUPS; server to accept browse packets from is shown here.</para> + +<screenshot> +<screeninfo>Dialog to enter a new value for the address of another +&CUPS; server to accept browse packets from</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfig_browsingmasks_add_button.png" +format="PNG" /></imageobject> +<textobject> +<phrase>Dialog to enter a new value for the address of another &CUPS; +server to accept browse packets from</phrase></textobject> +</mediaobject> +</screenshot> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Browse allow</guilabel> and <guilabel>Browse +deny</guilabel></term> +<listitem> +<para><guilabel>Browse allow</guilabel> specifies an address mask to +allow for incoming browser packets. The default is to allow packets +from all addresses.</para> +<para><guilabel>Browse deny</guilabel> specifies an address mask to +deny for incoming browser packets. The default is to deny packets +from no addresses.</para> +<para>Both <guilabel>Browse allow</guilabel> and <guilabel>Browse +deny</guilabel> accept the following notations for addresses:</para> + +<informalexample> +<itemizedlist> +<listitem> +<para><userinput>All</userinput></para> +</listitem> +<listitem> +<para><userinput>None</userinput></para> +</listitem> +<listitem> +<para><userinput>*.domain.com</userinput></para> +</listitem> +<listitem> +<para><userinput>.domain.com</userinput></para> +</listitem> +<listitem> +<para><userinput>host.domain.com</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.*</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.*</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.nnn.*</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.nnn.nnn</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.nnn.nnn/mmm</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.nnn.nnn/mmm.mmm.mmm.mmm</userinput></para> +</listitem> +</itemizedlist> +</informalexample> + +<para>The hostname/domain name restrictions will only work if you have +turned hostname lookups on!</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Browse order</guilabel></term> +<listitem> +<para>Specifies the order of the allow/deny comparisons.</para> +</listitem> +</varlistentry> +</variablelist> + +</sect1> + +<sect1 id="browsing-timeouts-configuration"> +<title>Browsing Timeouts Configuration</title> + +<para>The dialog to configure the &CUPS; server browse timeout settings +is shown here. Browse timeout settings include:</para> +<itemizedlist> +<listitem><para><guilabel>Browse Interval</guilabel></para></listitem> +<listitem><para><guilabel>Browse Timeout</guilabel></para></listitem> +</itemizedlist> +<screenshot> +<screeninfo>Dialog to configure the &CUPS; server browse timeout +settings</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration12_browsingtimeouts.png" +format="PNG"/></imageobject> +<textobject> +<phrase>dialog to configure the &CUPS; server browse timeout +settings</phrase></textobject> +</mediaobject> +</screenshot> + +<variablelist> +<varlistentry> +<term><guilabel>Browse interval</guilabel></term> +<listitem> +<para>The time between browsing updates in seconds. The default is 30 +seconds.</para> +<para>Note that browsing information is sent whenever a printer's +state changes as well, so this represents the maximum time between +updates.</para> +<para>Set this to 0 to disable outgoing broadcasts so your local +printers are not advertised, but you can still see printers on other +hosts.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term>Browse timeouts</term> +<listitem> +<para>The timeout (in seconds) for network printers - if we don't get +an update within this time, the printer will be removed from the +printer list.</para> +<para>This number definitely should not be less than the browse +interval period, for obvious reasons. Defaults to 300 seconds.</para> +</listitem> +</varlistentry> +</variablelist> + +</sect1> +<sect1 id="browsing-relay-configuration"> +<title>Browsing Relay Configuration</title> + +<para>The dialog to configure the &CUPS; server as a browsing relay is +shown here. Browsing relay settings include:</para> + +<itemizedlist> +<listitem><para><guilabel>Browser packets relay</guilabel></para></listitem> +</itemizedlist> + +<screenshot> +<screeninfo>Dialog to configure the &CUPS; server as a browsing +relay</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration14_browsingrelay.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Dialog to configure the &CUPS; server as a browsing +relay</phrase></textobject> +</mediaobject> +</screenshot> + +<variablelist> +<varlistentry> +<term>Add Browse Relay dialog</term> +<listitem> +<para>The dialog to enter a new value for an address pair to define +browsing relaying between a &CUPS; server and a network is shown +here.</para> + +<screenshot> +<screeninfo>The dialog to enter a new value for an address pair to +define browsing relaying between a &CUPS; server and a +network</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfig_browse_relay_add_button.png" +format="PNG"/></imageobject> +<textobject> +<phrase>The dialog to enter a new value for an address pair to define +browsing relaying between a &CUPS; server and a +network</phrase></textobject> +</mediaobject> +</screenshot> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Browser packets relay</guilabel></term> +<listitem> +<para>Relay browser packets from one address or network to +another.</para> +</listitem> +</varlistentry> +</variablelist> + +</sect1> + +<sect1 id="security-configuration"> +<title>Security Configuration</title> + +<para>The dialog to configure the &CUPS; server security settings for +any of the defined server locations is shown here. It contains the +following settings, which may be defined separately for any valid +resource (or location) of the &CUPS; server:</para> + +<itemizedlist> +<listitem><para>System Group:</para></listitem> +<listitem><para>Access Permissions: </para></listitem> +<listitem><para>Auth Type:</para></listitem> +<listitem><para>Auth Class:</para></listitem> +<listitem><para>Auth Group Name:</para></listitem> +<listitem><para>Encryption:</para></listitem> +<listitem><para>Allow:</para></listitem> +<listitem><para>Deny:</para></listitem> +<listitem><para>Order:</para></listitem> +</itemizedlist> + +<para>Valid resources (or locations) of the &CUPS; server are:</para> + +<itemizedlist> +<listitem><para>Server Root Location: <systemitem +class="resource">/</systemitem> </para></listitem> +<listitem><para>Server Administration Location: <systemitem +class="resource">/admin</systemitem></para></listitem> +<listitem><para>All printers on the server: <systemitem +class="resource">/printers</systemitem></para></listitem> +<listitem><para>Any individual printer on the server: +⪚ <systemitem +class="resource">/printers/infotec_P320</systemitem></para></listitem> +<listitem><para>All printer classes on the server: <systemitem +class="resource">/classes</systemitem>:</para></listitem> +<listitem><para>Any individual printer class on the server: +⪚ <systemitem +class="resource">/classes/all_infotecs_P320_or_P450</systemitem></para></listitem> +</itemizedlist> + +<screenshot> +<screeninfo>Dialog to configure the &CUPS; server security settings +for any of the defined server locations</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration_securityoverview.png" +format="PNG"/></imageobject> +<textobject> +<phrase>dialog to configure the &CUPS; server security settings for +any of the defined server locations</phrase></textobject> + +</mediaobject> +</screenshot> + +<note> +<para>For all locations that are not defined separately the setting of +the location <quote>above</quote> it is valid.</para> + +<para>For example, you have a printer named <systemitem +class="resource">infotec_P450</systemitem> with no set security +options. Then the security of the location <systemitem +class="resource">/printers</systemitem> will take the responsibility +for this printer as it is a sub-location of<systemitem +class="resource">/printers</systemitem>. If, in turn there is no +security set for <systemitem class="resource">/printers</systemitem>, +then the security for <systemitem class="resource">/</systemitem> (the +general security) of the server takes responsibility. Either you have +set this for your purpose or the compiled-in default value takes +over.</para> +</note> + +<variablelist> +<varlistentry> +<term>SystemGroup</term> +<listitem> +<para>The group name for <systemitem +class="groupname">System</systemitem> or printer administration +access. The default varies depending on the operating system, but +will be <systemitem class="groupname">sys</systemitem>, <systemitem +class="groupname">system</systemitem> or <systemitem +class="groupname">root</systemitem> (checked for in that order).</para> +</listitem> +</varlistentry> + +<varlistentry> +<term>Access Permissions</term> +<listitem> +<para>Access permissions for each folder served by the scheduler. +Locations are relative to the document root.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term>Authorization Type</term> +<listitem> +<para>The authorization to use:</para> + +<variablelist> +<varlistentry> +<term>None</term> +<listitem> +<para>Perform no authentication.</para> +</listitem> +</varlistentry> +<varlistentry> +<term>Basic</term> +<listitem> +<para>Perform authentication using the &HTTP; Basic method.</para> +</listitem> +</varlistentry> +<varlistentry> +<term>Digest</term> +<listitem> +<para>Perform authentication using the &HTTP; Digest method.</para> +</listitem> +</varlistentry> +</variablelist> + +<note> +<para>Local certificate authentication can be substituted by the +client for Basic or Digest, when connecting to the localhost +interface.</para> +</note> +</listitem> +</varlistentry> + +<varlistentry> +<term>Authorization Class</term> +<listitem> +<para>The authorization class. Currently only +<quote>Anonymous</quote>, <quote>User</quote>, <quote>System</quote> +(valid user belonging to the group set as system group), and +<quote>group</quote> (valid user belonging to the specified group) are +supported.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term>Authorization Group Name</term> +<listitem> +<para>The group name for <quote>Group</quote> authorization</para> +</listitem> +</varlistentry> + +<varlistentry> +<term>Encryption</term> +<listitem> +<para>Whether or not to use encryption. This depends on having the +<application>OpenSSL</application> linked into the &CUPS; library and +scheduler.</para> +<para>Possible values are:</para> +<variablelist> +<varlistentry> +<term>Always</term> +<listitem> +<para>Always use encryption (<acronym>SSL</acronym>)</para> +</listitem> +</varlistentry> +<varlistentry> +<term>Never</term> +<listitem> +<para>Never use encryption.</para> +</listitem> +</varlistentry> +<varlistentry> +<term>Required</term> +<listitem> +<para>Use <acronym>TLS</acronym> encryption upgrade.</para> +</listitem> +</varlistentry> +<varlistentry> +<term>IfRequested</term> +<listitem> +<para>Use encryption if the server requests it.</para> +</listitem> +</varlistentry> +</variablelist> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Allow</guilabel></term> +<listitem> +<para>Allows access from the specified hostname, domain, +<acronym>IP</acronym> address or network. Possible values are:</para> + +<informalexample> +<itemizedlist> +<listitem> +<para><userinput>All</userinput></para> +</listitem> +<listitem> +<para><userinput>None</userinput></para> +</listitem> +<listitem> +<para><userinput>*.domain.com</userinput></para> +</listitem> +<listitem> +<para><userinput>.domain.com</userinput></para> +</listitem> +<listitem> +<para><userinput>host.domain.com</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.*</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.*</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.nnn.*</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.nnn.nnn</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.nnn.nnn/mmm</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.nnn.nnn/mmm.mmm.mmm.mmm</userinput></para> +</listitem> +</itemizedlist> +</informalexample> + +<para>The host and domain address require that you enable hostname +lookups, as described earlier.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Deny</guilabel></term> +<listitem> +<para>Denies access from the specified hostname, domain, +<acronym>IP</acronym> address or network. Possible values are:</para> +<informalexample> +<itemizedlist> +<listitem> +<para><userinput>All</userinput></para> +</listitem> +<listitem> +<para><userinput>None</userinput></para> +</listitem> +<listitem> +<para><userinput>*.domain.com</userinput></para> +</listitem> +<listitem> +<para><userinput>.domain.com</userinput></para> +</listitem> +<listitem> +<para><userinput>host.domain.com</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.*</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.*</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.nnn.*</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.nnn.nnn</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.nnn.nnn/mmm</userinput></para> +</listitem> +<listitem> +<para><userinput>nnn.nnn.nnn.nnn/mmm.mmm.mmm.mmm</userinput></para> +</listitem> +</itemizedlist> +</informalexample> +<para>The host and domain address require that you enable hostname +lookups, as described earlier.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term>Order</term> +<listitem> +<para>The order of the allow and deny processing.</para> +</listitem> +</varlistentry> +</variablelist> +</sect1> + +<sect1 id="example-how-define-security-for-all-printers"> +<title>Example: How To Define The Security For All Printers</title> + +<para>The dialog to configure the &CUPS; server security settings is +discussed here. We use the example to add security definitions other +than the default ones for the resource named <systemitem +class="resource">all printers</systemitem>. For the &CUPS; web server, +this is the location you access through <ulink +url="http://localhost:631/printers/"> +http://localhost:631/printers/</ulink> or (remotely) through <ulink +url="http://cups.server.name:631/printers/"> +http://cups.server.name:631/printers/</ulink></para> + +<para>The first screenshot shows the general location for this +setting. <guilabel>Select</guilabel> <guibutton>Add</guibutton> or +<guibutton>Modify</guibutton> a resource for which you want to decide +about its security settings.</para> + +<screenshot> +<screeninfo>Dialog to configure the &CUPS; server security +settings</screeninfo><mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration15a_resourceallprinters_defineaccess.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Dialog to configure the &CUPS; server security +settings</phrase></textobject> +</mediaobject> +</screenshot> + +<para>This dialog is to add a new resource. It looks similar if you +want to modify an already existing resource. Here are the general +options:</para> + +<screenshot> +<screeninfo>Dialog to add a new resource.</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration15b_resourceallprinters_defineaccess.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Dialog to add a new resource.</phrase></textobject> +</mediaobject> +</screenshot> + +<para>.This is the second part or the dialog is to add a new +ressource. It looks similar if you want to modify an already existing +resource. Here you define the actual access masks for the resource in +question. </para> + +<screenshot> +<screeninfo>Dialog to add a new resource.</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration15c_resourceallprinters_defineaccess.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Dialog to add a new resource.</phrase></textobject> +</mediaobject> +</screenshot> +<screenshot> +<screeninfo>Resource dialog</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration_resourceadminaccessmasks.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Resource dialog</phrase></textobject> +</mediaobject> +</screenshot> + +<screenshot> +<screeninfo>Resource dialog</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration_resourceadminaddprinters.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Resource dialog</phrase></textobject> +</mediaobject> +</screenshot> + +<screenshot> +<screeninfo>Resource dialog</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration_resourceadminaddprinters_defineaccess.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Resource dialog</phrase></textobject> +</mediaobject> +</screenshot> + +<screenshot> +<screeninfo>Resource dialog</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsserverconfiguration_resourceadminauthorization.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Resource dialog</phrase></textobject> +</mediaobject> +</screenshot> + +</sect1> + +</chapter> diff --git a/doc/kdeprint/cups-filterarchitecture-kivio-70Percent-scaled.png b/doc/kdeprint/cups-filterarchitecture-kivio-70Percent-scaled.png Binary files differnew file mode 100644 index 000000000..9f5a73d39 --- /dev/null +++ b/doc/kdeprint/cups-filterarchitecture-kivio-70Percent-scaled.png diff --git a/doc/kdeprint/cupsaddprinterwizard1.png b/doc/kdeprint/cupsaddprinterwizard1.png Binary files differnew file mode 100644 index 000000000..cf20e087c --- /dev/null +++ b/doc/kdeprint/cupsaddprinterwizard1.png diff --git a/doc/kdeprint/cupsaddprinterwizard2_backendselection.png b/doc/kdeprint/cupsaddprinterwizard2_backendselection.png Binary files differnew file mode 100644 index 000000000..3e4b2f126 --- /dev/null +++ b/doc/kdeprint/cupsaddprinterwizard2_backendselection.png diff --git a/doc/kdeprint/cupsaddprinterwizard3_networkscan.png b/doc/kdeprint/cupsaddprinterwizard3_networkscan.png Binary files differnew file mode 100644 index 000000000..160834ee9 --- /dev/null +++ b/doc/kdeprint/cupsaddprinterwizard3_networkscan.png diff --git a/doc/kdeprint/cupsaddprinterwizard3_networkscan_results.png b/doc/kdeprint/cupsaddprinterwizard3_networkscan_results.png Binary files differnew file mode 100644 index 000000000..aa6cd87f1 --- /dev/null +++ b/doc/kdeprint/cupsaddprinterwizard3_networkscan_results.png diff --git a/doc/kdeprint/cupsaddprinterwizard4_networkscan_config.png b/doc/kdeprint/cupsaddprinterwizard4_networkscan_config.png Binary files differnew file mode 100644 index 000000000..7fff7de52 --- /dev/null +++ b/doc/kdeprint/cupsaddprinterwizard4_networkscan_config.png diff --git a/doc/kdeprint/cupsoptions.docbook b/doc/kdeprint/cupsoptions.docbook new file mode 100644 index 000000000..dc886d21c --- /dev/null +++ b/doc/kdeprint/cupsoptions.docbook @@ -0,0 +1,602 @@ +<chapter id="cupsoptions-presently-outside-kcontrol"> +<title>&CUPS; options presently not available through &kcontrol;</title> + +<para>This chapter gives you some hints about further configuration +possibilities which may not be available through the &kdeprint; &GUI; +interface to &CUPS;.</para> + +<sect1> +<title>Overview of provided features</title> + +<para>All of the most often used features and functions &CUPS; provides +are supported in &kdeprint;.</para> + +<itemizedlist> +<listitem> +<para>Printer management is supported: add, remove, modify, configure, +test, disable, enable ...</para> +</listitem> +<listitem> +<para>Job management is supported: cancel, hold, release, move to +different printer</para> +</listitem> +<listitem> +<para>Print options: for full control as provided by &CUPS;.</para> +</listitem> +</itemizedlist> + +</sect1> + +<sect1 id="where-to-find-further-chupshelp"> +<title>Where to find help when using &CUPS;</title> + +<para>A lot of information about the inner workings of &CUPS; is +available through the web interface, which &CUPS; will always +support. It works with any browser (yes, even text-based ones). Just go +to <ulink url="http://localhost:631/">http://localhost:631/</ulink> for +a start. There you find a link to locally available &CUPS; documentation +in <acronym>HTML</acronym> and <acronym>PDF</acronym> if you are new to +&CUPS;.</para> + +<para>&CUPS; is accessible through other means than &kdeprint;: +commandline and browser are two native &CUPS; interfaces. The many +commandline utilities add up to the most complete control you have on +&CUPS;. The web interface is only a subset of all available +configuration or control options. </para> + +<para>This is also true for &kdeprint;. Generally, as &CUPS; develops, +most new features will first be implemented through the commandline. Be +sure to check the latest versions of the man pages for &CUPS; to stay +up-to-date with new features after you install a new version.</para> + +<tip> +<para>Depending on your update method for &CUPS;, your active +configuration file might not have been re-placed by a new one; thus your +new, more capable &CUPS;-daemon might not have been told by the old +configuration file about the new features to use.</para> +</tip> + +<para>A complete list of available files and man pages should always be +in the &CUPS; Software Administrator Manual (<ulink +url="http://localhost:631/sam.html#FILES">http://localhost:631/sam.html#FILES</ulink>. +In the &konqueror; &URL;/location field, type +<userinput>man:/lpadmin</userinput> and +<userinput>man:/cupsd.conf</userinput> to find out about the most +important command and configuration file. You knew already about +&konqueror;'s nice abilities to show you the traditional &UNIX; man +pages, didn't you? Read this. From there you find more interesting +hints and links to other man pages and documentation.</para> + +<sect2> +<title>How to find &CUPS; related man pages</title> + +<para>Here is a way to find out which &CUPS; related man pages there +are on your system: </para> + +<screen><prompt>kurt@transmeta:~ ></prompt> <userinput><command>apropos</command> <parameter>cups</parameter></userinput> +<computeroutput> +cups-calibrate (8)- ESP Printer Calibration Tool +lpstat (1) - print cups status information +cups-lpd (8) - receive print jobs + report printer status to lpd clients +classes.conf (5) - class configuration file for cups +backend (1) - cups backend transmission interfaces +filter (1) - cups file conversion filter interfaces +cups-polld (8) - cups printer polling daemon +mime.types (5) - mime type description file for cups +cupsd (8) - common unix printing system daemon +lpadmin (8) - configure cups printers and classes +cupsd.conf (5) - server configuration file for cups +mime.convs (5) - mime type conversion file for cups +printers.conf (5) - printer configuration file for cups +mime.convs (5) - mime type conversion file for cups +cups-polld (8) - cups printer polling daemon +lpstat (1) - print cups status information +backend (1) - cups backend transmission interfaces +mime.types (5) - mime type description file for cups +cupsd (8) - common unix printing system daemon +lpadmin (8) - configure cups printers and classes +printers.conf (5) - printer configuration file for cups +cupsd.conf (5) - server configuration file for cups +filter (1) - cups file conversion filter interfaces +</computeroutput></screen> +</sect2> +</sect1> + +<sect1 id="tips-and-tricks-for-cups"> +<title>Outside &kdeprint;: Hints & Tips Tricks with &CUPS; on the +Commandline</title> + +<para>Here are a few examples of options that are presently only +available if you use the commandline. </para> + +<sect2> +<title>Allowing or denying printer access for certain users</title> + +<para>When installing (or modifying) a printer through the command line, +you can either deny or allow the usage of that printer to certain +users:</para> + +<screen><userinput><command>lpadmin</command> <option>-p</option><parameter>HeidelbergDigimaster9110</parameter> <option>-v</option> <parameter>lpd:/10.160.16.99/mqueue</parameter> <option>-u</option> <parameter>allow:kurt,sylvi,hansjoerg</parameter> <option>-E</option> <option>-P</option> <parameter>/home/kurt/PPDs/DVHV.ppd</parameter></userinput></screen> + +<para>will allow the usage of this (believe me: very nice and also very +professional) printer to only the three mentioned users and at the same +time deny it to all others. If another user wants to print on the +DigiMaster via this &CUPS; server, he will receive an error message +along the lines <errortype>client-error-not-possible</errortype>.</para> + +<screen><userinput><command>lpadmin</command> <option>-p</option> <parameter>HeidelbergDigimaster9110</parameter> <option>-v</option> <parameter>lpd:/10.160.16.99/mqueue</parameter> <option>-u</option> <parameter>deny:tackat,boss,waba</parameter> <option>-E</option> <option>-P</option> <parameter>/home/kurt/PPDs/DVHV.ppd</parameter></userinput></screen> + +<para>will deny the usage of this same printer to the three mentioned +users and at the same time allow it to all others. If +<quote>denied</quote> user wants to print on the DigiMaster via this +&CUPS; server, he will receive an error message along the lines +<errortype>client-error-not-possible</errortype>.</para> + +<note> +<para>Only one of the two options may be used at one time; at present +there is no support to have a similar option in a per-group based +way. This will be implemented in the future.</para> +</note> + +</sect2> +<sect2> +<title>Imposing Quotas for certain printers</title> + +<para>Sometimes you want to impose quotas for certain printers. With +quotas you can set upper limits for the number of pages or the amount of +data to be printed over a certain period to a certain printer.</para> + +<para>Quotas can be set with the <option>-o</option> option when +installing a printer with the <command>lpadmin</command> command, or +afterwards for an already existing printer. Following are some +guidelines (which are missing at the time of writing in the, official +&CUPS; documentation):</para> + +<itemizedlist> +<listitem> +<para>With &CUPS; you may have pagecount- and filesize-based quotas for +individual printers.</para> +</listitem> + +<listitem> +<para>Quotas are calculated for each user individually (so a single set +of limits applies to all users for the printer concerned).</para> +</listitem> + +<listitem> +<para>Quotas include banner pages (if those are used).</para> +</listitem> + +<listitem> +<para>This means: you can limit every user to 20 pages per day on an +expensive printer, but you cannot limit every user except <systemitem +class="username">Kurt</systemitem> or <systemitem +class="username">root</systemitem>.</para> +</listitem> + +<listitem> +<para>There are <option>job-k-limit</option>, +<option>job-page-limit</option>, and <option>job-quota-period</option> +options to give when setting up a printer.</para> +</listitem> + +<listitem> +<para><option>job-quota-period</option> sets a time interval for quota +computing (intervals are determined in seconds; so a day is +60x60x24=86.400, a week is 60x60x24x7=604,800, and a month is +60x60x24x30=2.592.000 seconds.)</para> +</listitem> + +<listitem> +<para>For quotas to be enforced, the time-period +<emphasis>plus</emphasis> at least one job-limit must be set to +non-zero.</para> +</listitem> + +<listitem> +<para>The default value of 0 for <option>job-k-limit</option> specifies +that there is no limit.</para> +</listitem> + +<listitem> +<para>The default value of 0 for <option>job-page-limit</option> +specifies that there is no limit.</para> +</listitem> + +<listitem> +<para>The default value of 0 for <option>job-quota-period</option> +specifies that the limits apply to all jobs that have been printed by a +user that are still known to the system.</para> +</listitem> +</itemizedlist> + +<sect3> +<title>Working Examples:</title> + +<para>Working, as both, time-period <emphasis>plus</emphasis> one or +both job-limits are defined</para> + +<screen><userinput><command>lpadmin</command> <option>-p</option> <parameter>danka_infotec_4850</parameter> <option>-o</option> <parameter>job-quota-period=604800</parameter> <option>-o</option> <parameter>job-k-limit=1024</parameter></userinput></screen> + +<para>This sets a limit of a file size of 1 MB (in total) for each user +of existing printer <systemitem +class="resource">danka_infotec_4850</systemitem> during one week.</para> + +<screen><userinput><command>lpadmin</command> <option>p</option> <parameter>danka_infotec_4105</parameter> <option>-o</option> <parameter>job-quota-period=604800</parameter> <option>-o</option> <parameter>job-page-limit=100</parameter></userinput></screen> + +<para>This sets a limit of 100 pages (in total) for each user of +existing printer <systemitem +class="resource">danka_infotec_4105</systemitem> during one week.</para> + +<screen><userinput><command>lpadmin</command> <option>-p</option> <parameter>danka_infotec_P450</parameter> <option>-o</option> <parameter>job-quota-period=604800</parameter> <option>-o</option> <parameter>job-k-limit=1024</parameter> <option>-o</option> <parameter>job-page-limit=100</parameter></userinput></screen> + +<para>This sets a combined limit of 1 MB (in total) and 100 pages (in +total) for each user of existing printer <systemitem +class="resource">danka_infotec_P450</systemitem> during one +week. Whichever limit is reached first will take effect.</para> + +</sect3> + +<sect3> +<title>Not working examples</title> + +<para><emphasis>NOT</emphasis> working, as only +<emphasis>one</emphasis>, time-period <emphasis>or</emphasis> job-limit +is defined)</para> + +<screen><userinput><command>lpadmin</command> <option>-p</option> <parameter>danka_infotec_P320</parameter> <option>-o</option> <parameter>job-quota-period=604800</parameter></userinput> + +<userinput><command>lpadmin</command> <option>-p</option> <parameter>danka_infotec_FullColor</parameter> <option>-o</option> <parameter>job-page-limit=100</parameter></userinput> + +<userinput><command>lpadmin</command> <option>-p</option> <parameter>danka_infotec_HiSpeed</parameter> <option>-o</option> <parameter>job-k-limit=1024</parameter></userinput></screen> + +</sect3> + +<sect3> +<title>Related Error Messages</title> + +<para>Once a user reaches his quota limit, he'll get a +<errortype>client-error-not-possible</errortype> message, if he wants to +print.</para> + +</sect3> + +</sect2> + +<sect2> +<title>Installing a <quote>raw</quote> printer</title> + +<para>There are different ways to define a <quote>raw</quote> +printer. One comfortable one is to use the <command>lpadmin</command> +command. Just don't define a &PPD; file to be used for that printer and +it will be a raw one:</para> + +<screen><userinput><command>lpadmin</command> <option>-p</option> <parameter>Raw_Danka_infotec</parameter> <option>-E</option> <option>-v</option> <parameter>lpd://10.160.16.137/PORT1</parameter></userinput></screen> + +<para>Raw printer queues are those which don't touch the print file to +transform it to a different file format. You need this for example when +printing from &Windows; clients via Samba through a &CUPS; server to a +<acronym>PCL</acronym> printer: in this case the &Windows; side printer +driver would generate the finished print file format for the target +printer and filtering it through &CUPS; filters would only harm the +purpose. Under certain circumstances (if you want to make sure that the +file goes to the printer <quote>unfiltered</quote> by &CUPS;) the +<quote><command>lpadmin</command> without a &PPD;</quote> comes in +handy.</para> + +</sect2> + +</sect1> +<sect1 id="troubleshooting-cups"> +<title>Troubleshooting &CUPS; in &kdeprint;</title> + +<para>This section of the &kdeprint; Handbook will live from the +readers' feedback. Here is just a small beginning.</para> + +<sect2> +<title>Error Messages</title> + +<qandaset> +<qandaentry> +<question> +<para>What does the error +<errortype>client-error-bad-request</errortype> mean?</para> +</question> +<answer> +<para>The user sent a file to the &CUPS; which the server could not +process. You get this also upon sending an <quote>empty</quote> +file.</para> +</answer> +</qandaentry> + +<qandaentry> +<question> +<para>And <errortype>client-error-not-possible</errortype>?</para> +</question> +<answer> +<para>User is either not allowed to print to a certain printer or has +achieved his quota (based on file size and/or page number)</para> +</answer> +</qandaentry> + +<qandaentry> +<question> +<para>How about <errortype>client-error-not-found</errortype>?</para> +</question> +<answer> +<para>The user tried to access a nonexistent resource on the &CUPS; +server, such as trying to print a nonexistent file, or one that you are +denied permission to read.</para> +</answer> + +</qandaentry> +</qandaset> + +</sect2> + +<sect2> +<title>Questions and Answers</title> + +<qandaset> +<qandaentry> +<question> +<para>Why can't I re-start my jobs?</para> +</question> +<answer> +<para>To be able to re-start your <quote>completed</quote> jobs from the +web interface, you need a setting in the +<filename>/etc/cups/cupsd.conf</filename> file: set +<userinput>PreserveJobFiles True</userinput>.</para> +</answer> +</qandaentry> + +<qandaentry> +<question> +<para>How do I get rid of the long list of completed jobs in the web +interface?</para> +</question> +<answer> +<para>TODO</para> +</answer> +</qandaentry> + +<qandaentry> +<question> +<para>How does page accounting work?</para> +</question> +<answer> +<para>&CUPS; does the <quote>print accounting</quote> by passing nearly +every job through the <quote>pstops</quote> filter. This one does, +amongst other things, the page counting. Output of this filter there may +be piped into other filters (like pstoraster --> rastertopcl) or sent to +the printer directly (if it is a &PostScript; printer).</para> + +<para>In any case, this works for network, parallel, serial or +<acronym>USB</acronym> printers the same. For pstops to work, it needs +<acronym>DSC</acronym>, Document Structuring Convention compliant +&PostScript; (or near-equivalent) as input. So it calculates the pages +during filtering on the print server and writes info about every single +page (what time, which user, which job-ID and -name, which printer, how +many copies of which pages of the document, how many kilo-bytes?) into +<filename>/var/log/cups/page_log</filename>.</para> + +<para>By the way: on my personal <quote>wishlist</quote> is a hack of +<quote>webalizer</quote> to read and analyze the page_log and give a +similar output. Anyone?</para> + +<para>However, it is <emphasis>not</emphasis> giving correct results in +the following cases:</para> + +<itemizedlist> +<listitem> +<para>The printer jams and maybe therefor throw away the job (real live +experience; or maybe throwing away the job because of problems with the +data format)</para> +</listitem> +<listitem> +<para>Jobs printed as <quote>raw</quote> are always counted as size of 1 +page (and maybe multiple copies).</para> +</listitem> +</itemizedlist> + +<para>Therefore the page accounting of &CUPS; is <quote>only</quote> +an approximation (in many cases an excellent or at least good one, in +others a quite poor one). The only reliable print count is the one +done by the internal printer counter. (Because this is the one you pay +for, if you are on a <quote>click price</quote> or similar.) Some, by +far not most, printers can be queried remotely for that information +via <acronym>SNMP</acronym> (Simple Network Management Protocol). That +means, in a bigger network with many different printers there +<emphasis>is</emphasis> just no completely reliable and accurate page +accounting tool!</para> +</answer> +</qandaentry> + +<qandaentry> +<question> +<para>Why doesn't page-accounting work with &Windows; clients?</para> +</question> +<answer> +<para>From &Windows; clients jobs nearly always need to be sent as +<quote>raw</quote>. Why? If &CUPS; works as a print server for &Windows; +clients using the original native &Windows; driver for the target print +device, this guarantees the correct formatting of the job on the clients +already; therefor the server should not touch it and print +<quote>raw</quote>; therefor no filtering is started (and this is not +even possible as the input from the clients is not &PostScript; as +pstops expects; hence no page-count other than the default +<quote>1</quote>.</para> +</answer> +</qandaentry> + +<qandaentry> +<question> +<para>How do I get a list of available options for a given printer or a +&PPD; file?</para> +</question> +<answer> +<para>See the man page for the <command>lpoptions</command> command. You +may investigate a &CUPS;-enabled box about any option of its available +printers. There is no need to have the printer installed locally. As +long as the printer is available locally (through the &CUPS; +<quote>printer browsing</quote> feature), it will also work +remote.</para> + +<para>To query for a printers' option typing +<userinput><command>lpoptions</command> <option>-p</option> +<parameter>HitachiDDP70MicroPress</parameter> +<option>-l</option></userinput> will give a long listing of all +available options as read from the &PPD; file for the given +Hitachi-Printer (in my case installed on remote server +transmeta). Remote server <systemitem +class="systemname">Transmeta</systemitem> and its &CUPS; daemon as well +as the localhost's &CUPS; daemon need to be up and running for this to +succeed.</para> +</answer> +</qandaentry> + +<qandaentry> +<question> +<para>How do I read the listing retrieved by the +<command>lpoptions</command> command?</para> +</question> + +<answer> +<para>You know that for &PostScript; printer manufacturers it is +<quote>legal</quote> to define their own internal names and procedures +even for standard &PostScript; options. As long as the driver is able to +retrieve the option from the &PPD; and show it to the user in a way that +he understands it everything is OK. But what do <emphasis>you</emphasis> +do, if you want to use some obscure printer options on the command line? +How do you find out its exact syntax?</para> + +<para>Let's take an example. Looking at Hitachi's DDP70 printer and how +it implements duplex printing is revealing somehow. How do you tell how +to print double sided? duplex or Duplex? Or another name altogether?.</para> + +<screen><userinput><command>lpoptions</command> <option>-h</option> <parameter>transmeta</parameter> <option>-p</option> <parameter>Hitachi_DDP70_ClusterPrintingSystem</parameter> <option>-l</option> | <command>grep</command> <parameter>uplex</parameter></userinput></screen> + +<para>This leads to the output</para> + +<screen><computeroutput>TR-Duplex/Duplex: False *True</computeroutput></screen> + +<para>This is to be interpreted like follows:</para> + +<itemizedlist> +<listitem> +<para>The name of the investigated option is +<option>TR-Duplex</option>;</para> +</listitem> +<listitem> +<para>Behind the slash you see the translation of the option, as it +should be shown in a &GUI; or Web interface +(<quote>Duplex</quote>);</para> +</listitem> +<listitem> +<para>The option may take one of the two values +<parameter>False</parameter> or <parameter>True</parameter>;</para> +</listitem> +<listitem> +<para>The present setting is <parameter>True</parameter> to be +recognized by the marking with a star <literal>*</literal>.</para> +</listitem> +</itemizedlist> + +<para>To override the present default setting (duplex) and print a job +in simplex, you need to use the following command: </para> + +<screen><userinput><command>lpr</command> <option>-P</option> <parameter>Hitachi_DDP70_ClusterPrintingSystem</parameter> <option>-o</option> <parameter>TR-Duplex=False</parameter> <parameter>/path/to/your/printjob</parameter></userinput></screen> +</answer> +</qandaentry> + +<qandaentry> +<question> +<para>How do I get a nicely formatted listing of available options for a +given printer or &PPD;?</para> +</question> +<answer> +<para>Use the <command>lphelp</command> command which may be installed +on your system locally. There is not yet a man page for +<command>lphelp</command>.</para> + +<screen><userinput><command>lphelp</command> <parameter>infotecP450</parameter></userinput></screen> + +<para>This lists the available options for the named printer. It is +nicely formatted and does explain every available option and how to use +it. You can query different printers' options at once:</para> + +<screen><userinput><command>lphelp</command> <parameter>infotec7410color</parameter> <parameter>DANKA_fullcolor_D2000</parameter> <parameter>HP_ColorLaserJet8550</parameter></userinput></screen> + +<para>It also works for &PPD; files. Just specify the path to the +&PPD;:</para> + +<screen><userinput><command>lphelp</command> <filename>/home/kurt/PPDs/HP-ColorLaserJet8550.ppd</filename></userinput></screen> +</answer> +</qandaentry> +</qandaset> + +</sect2> +<sect2> +<title>Solving Problems</title> + +<para>No system is perfect. Here are some commonly seen traps people +have fallen into.</para> + +<qandaset> +<qandaentry> +<question> +<para>My printer named <quote>3-lp-duplex</quote> shows erratic +behavior. What's wrong?</para> +</question> +<answer> +<para>The printer names used in &CUPS; shall start with a letter and may +contain up to 128 letters, numbers or underscores. Using dashes may lead +to problems. Speaking about naming: printer names in &CUPS; are not case +sensitive. So a printer named <systemitem +class="resource">Best_of_Danka</systemitem> will be the same as +<systemitem class="resource">best_of_danka</systemitem> or <systemitem +class="resource">BEST_OF_DANKA</systemitem>. (This is a requirement of +&IPP;, which &CUPS; is fully compliant with).</para> +</answer> +</qandaentry> + +<qandaentry> +<question> +<para>Why do I get <errortype>Unable to connect to SAMBA host: +Success</errortype> with my printer shares from &Windows; accessed via +Samba?</para> +</question> +<answer> +<para>Are the rights on the remote &Windows; box set correctly for you? +Are you actually allowed to print on the &Windows; shared +printer?</para> +</answer> +</qandaentry> + +<qandaentry> +<question> +<para>My files for printer <systemitem class="resource">lp</systemitem> +sometimes mysteriously disappear and two days later I am told they got +printed on a printer three floors below my office. What is going on?</para> +</question> +<answer> +<para>Believe me, it is very unlikely that your printer is the only one +with the name <systemitem class="resource">lp</systemitem>. Maybe +&CUPS; is playing a trick on you. As you might have the setting +<quote>ImplicitClasses On</quote> activated, &CUPS; tries to stuff all +printers it sees on the network into a <quote>Class</quote> name lp. All +jobs destined to lp are sent to this class and the first available +member prints it. So if you had this nice fellow (who listened closely +when you raved about &CUPS; and &kdeprint;) install &CUPS; and poke +around the system...get the idea?</para> + +<para>Take my advice: choose a unique name for any network printer! +(Mind you, the one on your parallel port also turns out to be a network +printer for the rest of the world if you don't take care of your +settings).</para> +</answer> +</qandaentry> +</qandaset> +</sect2> +</sect1> +</chapter> diff --git a/doc/kdeprint/cupsserverconfig_browse_relay_add_button.png b/doc/kdeprint/cupsserverconfig_browse_relay_add_button.png Binary files differnew file mode 100644 index 000000000..391cf06ee --- /dev/null +++ b/doc/kdeprint/cupsserverconfig_browse_relay_add_button.png diff --git a/doc/kdeprint/cupsserverconfig_browsingmasks_add_button.png b/doc/kdeprint/cupsserverconfig_browsingmasks_add_button.png Binary files differnew file mode 100644 index 000000000..f5767faad --- /dev/null +++ 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<quote>File</quote> Printer</title> + +<para>To be written</para> + +</sect2> + +<sect2> +<title>The <quote><acronym>PDF</acronym></quote> Printer</title> + +<para>To be written</para> + +</sect2> + +</sect1> + +<sect1 id="external-filters"> +<title><quote>External</quote> Filters</title> + +<sect2> +<title>The <command>enscript</command> Filter for Text Files</title> + +<para>To be written</para> + +</sect2> + +<sect2> +<title>The <quote>n-up</quote> Filter for Any File</title> + +<para>To be written</para> + +</sect2> + +<sect2> +<title>Three different <quote>Make Pamphlet</quote> Filters for +&PostScript; Files</title> + +<para>To be written</para> + +</sect2> + +</sect1> + +</chapter> diff --git a/doc/kdeprint/external-command.docbook b/doc/kdeprint/external-command.docbook new file mode 100644 index 000000000..1a1135d7c --- /dev/null +++ b/doc/kdeprint/external-command.docbook @@ -0,0 +1,25 @@ +<chapter id="external-printcommand-module"> +<title>Module For External Print Command (&Netscape;-like) </title> + +<para>This module allows the print command to be specified completely +(&Netscape;-like). An edit line is added in the print dialog for that +purpose. Can be used in many cases, for example with a self-made print +program. </para> + +<sect1> +<title>Overview of provided features</title> + +<itemizedlist> +<listitem> +<para>Printer management: not supported</para> +</listitem> +<listitem> +<para>Job management: not supported.</para> +</listitem> +<listitem> +<para>Print options: basic control, depending on your knowledge of the +print command</para> +</listitem> +</itemizedlist> +</sect1> +</chapter> diff --git a/doc/kdeprint/final-word.docbook b/doc/kdeprint/final-word.docbook new file mode 100644 index 000000000..ed2ae029a --- /dev/null +++ b/doc/kdeprint/final-word.docbook @@ -0,0 +1,117 @@ +<chapter id="final-word-from-author"> +<title>Final word from the Author</title> + +<sect1 id="who-am-i"> +<title>Who am I, what is my business? </title> + +<para> +My employer is Danka Deutschland GmbH, a leading and +manufacturer-independent provider of professional and hi-speed digital +printing systems, black-and-white as well as color. Danka provides +hardware, software, service, maintenance, consumables and customized +solutions for the products in its portfolio. I work there as a +System Engineer. Amongst the brands Danka offers are Heidelberg +(formerly Kodak), Canon, &Hewlett-Packard;, Hitachi, Infotec and +EfI.</para> + +<para> +My acquaintance with &Linux; and the Free Software community is not +too old. When I started to play around with &Linux; at the beginning +of 1999, my deepest disappointment was the poor support for +printing. True, I made all our machines spit out simplex prints -- but +what about duplex? What about punching the output? How to make sorting +work? Or stapling, cover sheets and all the other beautiful finishing +options our engines offer to customers? No way -- at least for me as a +non-geek!</para> + +<para> +I began a search on the Internet for a solution. Fortunately not +much later, in May 1999, Mike Sweet, principal developer of &CUPS;, +announced the first Beta release of this superb piece of printing +software. After trying it briefly, I knew this was it!</para> + +<para> +Next thing I attempted: to make &Linux; distributions interested in +this new stuff. Believe me -- it was more than tenacious! They seemed +to think they already had the best thing they could get in +printing. One reason probably was that they (and many &Linux; +developers) never had to think about how to best support a printer +duplexer -- because one had never come near their own +desks...</para> + +<para> +Finally, my attempts to make some &Linux; print publications +interested in &CUPS; <quote>backfired</quote> on me - one editor +squeezed me into writing a series on the subject myself. And this is +how some people started to give me the nickname <quote>CUPS +Evangelist</quote>. I will not get rid of this nick anytime soon, now +that even the &kde; people wedged me into their timeframe of +releases. Oh, boy...</para> + +<para>Anyway, &CUPS; is now making its way around the world and it +might well become a triumphal one: I am a little bit proud to have +supported and contributed to this from near the beginning.</para> + +<para>It should encourage you: even if some more experienced &Linux; +users than you are skeptical about it, and even if your programming +skills are next to zero (like mine) - there are a lot of tasks and +jobs and ideas, and talent that you can contribute to the Free Software +community. Not least within the &kde; project... ;-) +</para> + +</sect1> + +<sect1 id="credits"> +<title>Credits</title> + +<para>I'd like to thank...</para> +<itemizedlist> +<listitem> +<para>Mike Sweet for developing &CUPS; in the first place</para> +</listitem> +<listitem> +<para>Jean-Eric Cuendet for starting <application>kups</application> +and <application>qtcups</application>, the predecessors of +&kdeprint;</para> +</listitem> +<listitem> +<para>Michael Goffioul for doing all the hard work recently</para> +</listitem> +<listitem> +<para>Martin Konold for thinking twice</para> +</listitem> +<listitem> +<para>Sven Guckes for teaching me a few things about the art of <quote>survival +on the terminal</quote> (just in case &kde; is not there ;-) )</para> +</listitem> +<listitem> +<para>...too numerous others to mention who also let me snatch bits +and bytes of knowledge +off them</para> +</listitem> +<listitem> +<para> and last, but not least: Tom Schwaller for encouraging me +to get into <quote>documentation +writing</quote></para> +</listitem> +</itemizedlist> + +</sect1> + +<sect1 id="caveats"> +<title>Caveats</title> + +<para>&kdeprint; has been developed on a system using &CUPS; 1.1.6. +&kdeprint; has been tested on other versions of &CUPS; and so +far no incompatibilities are known. By the time of writing +this Handbook, &CUPS; 1.1.9 is out with a few new features +not yet supported by &kdeprint;. Of course you are able to +access these features, but you will need to bypass &kdeprint; +and use the &CUPS; command-line tools or edit configuration +files manually. &kdeprint;'s development will go on and this +Handbook strives to always be the best available user documentation +resource for it.</para> + +</sect1> + +</chapter> diff --git a/doc/kdeprint/getting-started.docbook b/doc/kdeprint/getting-started.docbook new file mode 100644 index 000000000..cb360379f --- /dev/null +++ b/doc/kdeprint/getting-started.docbook @@ -0,0 +1,143 @@ +<chapter id="getting-started"> +<title>Getting Started</title> + +<para>This chapter of the &kdeprint; Handbook will walk you through most +of the configuration or selection options of &kdeprint;. It will mainly +deal with &CUPS; in this version, as the author is most familiar with +it, and also because &kdeprint; started off with supporting &CUPS; +best. Later versions of the &kdeprint; software and editions of this +handbook will support and explore other printing +systems more closely.</para> + +<sect1 id="selecting-your-print-subsystem"> +<title>Selecting Your Print Subsystem</title> + +<para>You need to define your print subsystem, before you are able to +install any printer with the &kdeprint; framework. There are two areas +where you can define this: either in &kcontrol; (The <guilabel>Printing +Manager</guilabel> section), or directly and <quote>on the fly</quote> +from the print dialog.</para> + +<para>Navigate to <menuchoice><guimenu>K Menu</guimenu> +<guisubmenu>Preferences</guisubmenu> <guisubmenu>System</guisubmenu> +<guimenuitem>Printing Manager</guimenuitem></menuchoice>. At the bottom +you can see a button that lets you select which printing subsystem you +want to use. In &kde; 2.2 you can choose from the following +alternatives:</para> + +<itemizedlist> +<listitem> +<para>&CUPS; (Common &UNIX; Printing System)</para> +</listitem> +<listitem> +<para>Print through an external program (generic)</para> +</listitem> +<listitem> +<para><acronym>LPR</acronym> (Standard <acronym>BSD</acronym> Print +System)</para> +</listitem> +<listitem> +<para>Generic &UNIX; <acronym>LPD</acronym> print system (the +default)</para> +</listitem> +<listitem> +<para><acronym>RLPR</acronym> environment (print to remote +<acronym>LPD</acronym> servers from the command line)</para> +</listitem> +</itemizedlist> + +<para>Of course, the chosen system must be installed, and up and running on +your box prior to your selection, or before it takes effect. <!-- The --> +<!-- authors personal recommendation is &CUPS; --> +</para> + +<para>On it's first startup, &kdeprint; will try an autodetection. This +only works for:</para> + +<itemizedlist> +<listitem> +<para>&CUPS;, as it is checking first for a running &CUPS; daemon</para> +</listitem> +<listitem> +<para><acronym>LPD</acronym>, as it is checking for a running +<acronym>LPD</acronym> daemon, plus a <filename>printcap</filename> +file.</para> +</listitem> +</itemizedlist> + +<!-- <para> +Go to System->XY->ABC. Now you can choose from the following +alternatives: +</para>--> + +<para>The system you choose must be installed on your system prior to +your selection. The author's personal recommendation is +&CUPS;.</para> + +<para>Once autodetected, chosen, or changed, the active print +subsystem will take effect for all &kde; applications. Different +users may have different print subsystems in use, if those do exist on +the computer and are compliant with each other. Their settings are +stored in the <filename>kdeprintrc</filename>. This file is unique to +every user, and is normally installed in +<filename>$<envar>HOME</envar>/.kde/share/config/kdeprintrc</filename>.</para> + +<warning> +<para>This file is not intended to be directly editable, and all +available options can be set from the &kdeprint; &GUI;.</para> +</warning> + +<para>You may even select a different printer subsystem, on the fly, from +the &kprinter; dialog box.</para> + +</sect1> + +<sect1 id="working-with-printing-manger"> +<title>Working with the Printing Manager</title> + +<para>Once you have chosen your preferred and installed print subsystem, +you are ready to investigate, configure administer and work with this +system through the &kdeprint; framework.</para> + +<para>Navigate to <menuchoice><guimenu>K Menu</guimenu> +<guisubmenu>Preferences</guisubmenu> <guisubmenu>System</guisubmenu> +<guimenuitem>Printing Manager</guimenuitem></menuchoice>. In the right +part of the window you will see at least 4 printers predefined. These +are the virtual or special purpose printers, explained in section <!-- <xref +linkend="FIXME"/> -->. You will probably see a toolbar with 13 icons at the +top of the window, and at least 4 tabs in the lower half of the window, +labeled <guilabel>Information</guilabel>, <guilabel>Jobs</guilabel>, +<guilabel>Properties</guilabel> and +<guilabel>Instances</guilabel>.</para> + +<!-- Not needed: the default view is as described, this can be mentioned --> +<!-- elsewhere <para>If you start the <guilabel>Printing --> +<!-- Manager</guilabel> module for the first time, you may be missing --> +<!-- Icons or tabs. <mousebutton>Right</mousebutton>-clicking the mouse --> +<!-- on the white background of the right part of the window opens a --> +<!-- Menu to select your viewing preferences. To get the same view as in --> +<!-- most screenshots, select: <guimenuitem>View Toolbar</guimenuitem> --> +<!-- and <guimenuitem>View Printer Information</guimenuitem> and --> +<!-- <guimenuitem>View Icons</guimenuitem> and <guimenuitem>Orientation --> +<!-- Vertical</guimenuitem>. Moving the mouse over one Button and --> +<!-- waiting a second gives you a tooltip hint about its functions. --> + +<!-- + +3.3 Selection: &CUPS; or other? + +If your selection of the print system is &CUPS;, you will have more +choices at your fingertips than with any other printing +system. &CUPS; is new to most Linux users (even the senior +hackers amongst us), and it is quite easy to use. But it +is at the same time very different from other printing systems. +Therfor the &CUPS; part in the &kdeprint; Handbook is naturally +the most detailed. + +Future editions of the &kdeprint; handbook will describe in +more detail the other systems. +--> + +</sect1> + +</chapter> diff --git a/doc/kdeprint/highlights.docbook b/doc/kdeprint/highlights.docbook new file mode 100644 index 000000000..85e0e348f --- /dev/null +++ b/doc/kdeprint/highlights.docbook @@ -0,0 +1,518 @@ +<chapter id="kdeprint-highlights"> +<title>&kdeprint;'s Highlights</title> + +<para>The new &kdeprint; system includes more than one highlight. +Having worked in an environment in the past that is not exactly +sophisticated, as far as printing is concerned, take a look at some of +the benefits that come with &kdeprint;</para> + +<sect1 id="add-printer-wizard"> +<title>The <quote>Add Printer</quote> Wizard</title> + +<para>&kdeprint; has an <quote>Add Printer Wizard</quote>. The Add +Printer Wizard helps you with adding and configuring a new printer. Of +course, you may do this manually as well.</para> + +<para>&kdeprint; helps you <quote>discover</quote> printers. It is able +to scan the environment for available devices and queues. This works for +network connections using <acronym>TCP</acronym> (AppSocket, +<acronym>aka</acronym> &HP; <trademark +class="registered">JetDirect</trademark>, or <acronym>IPP</acronym>) or +<acronym>SMB</acronym>/Samba (<quote>shared</quote> &Windows;) printers +and partially for directly attached printers over parallel, serial, or +<acronym>USB</acronym> connections.</para> + +<screenshot> +<screeninfo>A screenshot of the new <quote>Add Printer +Wizard</quote></screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cupsaddprinterwizard1.png" format="PNG"/> +</imageobject> +<textobject> +<phrase>Here's a screenshot of the <quote>Add Printer Wizard</quote> +(this one is not very exciting yet; but...)</phrase> +</textobject> +</mediaobject> +</screenshot> + +<para>The wizard makes the installation and handling of the drivers +<quote>a snap</quote>. Selecting, configuring and testing should be easy +as never before on any &Linux;-like system.</para> + +<!-- LW: needs some info where to find it, or a pointer to where in this --> +<!-- doc that is covered --> + +</sect1> + +<sect1 id="print-job-control"> +<title>Full Print Job Control</title> + +<para>The Print Job Viewer is automatically started by &kprinter;. It +may be docked into the &kde; panel (in the system tray). The Print Job +Viewer allows full job management, if supported by the print +subsystem.</para> + +<para>You can:</para> + +<itemizedlist> +<listitem> +<para>Hold and release jobs,</para> +</listitem> +<listitem> +<para>Move pending jobs to another printer,</para> +</listitem> +<listitem> +<para>Cancel pending or processing jobs.</para> +</listitem> +</itemizedlist> + +<para>A screenshot of the &kdeprint; PrintJob Viewer shows the information +you get: Job-ID, target printer, job name, job owner, job status and job +size. In the next &kdeprint; release you will also see information about the +number of pages (as &CUPS; calculates it; see chapter on page accounting +for more information about its merits and limitations).</para> + +<screenshot> +<screeninfo>A screenshot of the &kdeprint; PrintJob Viewer</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="kdeprint-jobviewer.png" format="PNG"/> +</imageobject> +<textobject> +<phrase>Here's a screenshot of the &kdeprint; PrintJob Viewer.</phrase> +</textobject> +<caption><para>A screenshot of the &kdeprint; PrintJob +Viewer.</para></caption> +</mediaobject> +</screenshot> + +<para>An alternative way to looking at the same information (and having the +same amount of control is through the <inlinemediaobject><imageobject> +<imagedata fileref="kcontrol-icon.png" format="PNG"/></imageobject> +</inlinemediaobject> &kcontrolcenter; selecting +<menuchoice><guilabel>System</guilabel><guilabel>Printing +Manager</guilabel></menuchoice>. If you don't see the +<guilabel>Printer Information</guilabel>, +<mousebutton>right</mousebutton> click on the window +background and select <guilabel>View Printer +Information</guilabel>. Then go to the <guilabel>Jobs</guilabel> tab +to see this:</para> + +<screenshot> +<screeninfo></screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="kcontrolcenter-printmanager-jobcontrol-2.png" format="PNG"/> +</imageobject> +<textobject> +<phrase>Here's a screenshot of the &kdeprint; PrintJob Viewer.</phrase> +</textobject> +</mediaobject> +</screenshot> + +</sect1> + +<sect1 id="modules-for-different-subsystems"> +<title>Modules for different print subsystems</title> + +<para>&kdeprint; uses different modules to realize the interface to the +possible print subsystems. Not all the modules are yet developed fully, +but you will have basic printing functionality with:</para> + +<itemizedlist> +<listitem> +<para><acronym>LPD</acronym> (<acronym>BSD</acronym> style)</para> +</listitem> +<listitem> +<para><acronym>LPRng</acronym> (&RedHat;, if you just use it's +<acronym>BSD</acronym> style subset),</para> +</listitem> +<listitem> +<para><acronym>RLPR</acronym> (a command-line <acronym>LPR</acronym> +utility, which doesn't need a <filename>printcap</filename> file.</para> +</listitem> +<listitem> +<para><quote>external</quote> print commands (&Netscape; like).</para> +</listitem> +</itemizedlist> + +<para>Most importantly, full support for &CUPS; is already there. +Modules for other print subsystems, such as <acronym>PLP</acronym>, +<acronym>PPR</acronym> and <acronym>PDQ</acronym> may be available +later.</para> + +<para>&kdeprint; makes &kde; much more flexible. It gives freedom of +choice to &kde; 2.2 users. To use different available print subsystems, +these must, of course, be installed independently from &kde;. In +former versions, users were stuck with the old <acronym>LPD</acronym> +style print subsystems. Now they can even use &CUPS;. In the future, +there will be easy integration of new subsystems, as they +appear on the scene.</para> + +</sect1> + +<sect1 id="kdeprint-goodies"> +<title>More &kdeprint; <quote>Goodies</quote></title> +<subtitle>Benefitting all Print SubSystems.</subtitle> + +<para>Some specific features of &kdeprint; depend on the chosen print +subsystem. This dependency might exist because those features are only +implemented there; remember, &kdeprint; is an intermediate layer between +&kde; applications, and the print subsystem, but it's no replacement for +any print subsystem by itself. Such dependency may exist for another +reason: that &kdeprint; has not yet implemented an interface to all the +features of all the subsystems.</para> + +<para>Other features include benefits from &kdeprint; that are +independent of the chosen print subsystem, and are available with all of +them. At present there are <quote>special</quote> or +<quote>virtual</quote> printers, and some generic +<quote>pre-filters</quote>.</para> + +<variablelist> +<varlistentry> +<term><guilabel>Print Preview</guilabel></term> +<listitem> +<para>From the Print Dialog, you can select to look at a preview. For +this, the print file is passed through filters which make it suitable for +displaying on screen using &kghostview;.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Special Printers</guilabel></term> +<listitem> +<para>Amongst these additional &kdeprint; features are a few +<quote>special</quote> or <quote>virtual</quote> printers:</para> + +<para>These special printers may:</para> + +<variablelist> +<varlistentry> +<term><guilabel>Print to PDF</guilabel></term> +<listitem> +<para>Convert your document into a <acronym>PDF</acronym> file with the +help of an external program.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Print to email</guilabel></term> +<listitem> +<para>Send your document as an email attached <acronym>PDF</acronym> +file.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Print to PS file</guilabel></term> +<listitem> +<para>Save your document as a &PostScript; file.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Print to Fax</guilabel></term> +<listitem> +<para>Send it through an available backend, such as +<application>Hylafax</application> as a fax.</para> +</listitem> +</varlistentry> + +</variablelist> + +<para>These <quote>special</quote> printers appear in the user print +dialog just like <quote>normal</quote> printers. They are entirely +configurable on a per-user basis.</para> + +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Generic Pre-Filtering</guilabel></term> +<listitem> +<para>&kdeprint; provides you with a framework to define and configure +your own <quote>pre-filters</quote>. These pre-filters may take effect +<emphasis>before</emphasis> they are passed to your print subsystem for +further processing, but <emphasis>after</emphasis> the (&PostScript;, +plain text or other) print files have been generated by your +application.</para> + +<para>There are a few useful filters already predefined. These +are:</para> + +<itemizedlist> +<listitem> +<para>The <quote>multiple pages per sheet</quote> filter,</para> +</listitem> + +<listitem> +<para>the <quote>enscript</quote> text filter,</para> +</listitem> + +<listitem> +<para>and three filters to help print pamphlets.</para> +</listitem> +</itemizedlist> + +<para>You may create your own filters based on any third party program +that is able to process &PostScript;, plain text or image files, and output +any one of those formats.</para> + +<para>These filters are configured through <acronym>XML</acronym> files. +This makes an extension of the concept very easy for experienced developers, +but end-user configuration is also done through an intuitive graphical +user interface. So, fear not, you don't need to learn +<acronym>XML</acronym> because of &kdeprint;!</para> + +<variablelist> +<varlistentry> +<term><guilabel>Multiple Pages Per Sheet Filter</guilabel></term> +<listitem> +<para>This is a predefined filter that installs with &kdeprint;. It +allows you to create a modified &PostScript; output, from &PostScript; +input, that prints 1, 2, or 4 logical pages on a single sheet of +paper.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Enscript Text Filter</guilabel></term> +<listitem> +<para>This is a predefined filter that installs with &kdeprint;. It +allows you to create &PostScript; output from any text file input, that +includes syntax highlighting for program listings, pretty-printing, and +nice configurable page frames and headers.</para> +</listitem> +</varlistentry> + +<varlistentry> +<term><guilabel>Pamphlet Printing Filters</guilabel></term> +<listitem> +<para>If your printer is able to produce duplex output, using either +one-pass or two-pass technology, you may be able to use one, or a +combination, of the <quote>pamphlet</quote> filters.</para> + +<para>For duplexing printers, make sure you use the duplex option that +<quote>turns</quote> the output along the short paper edge. Folding the +printed paper along the middle turns your document into a nice pamphlet.</para> + +<para>If you are stuck with using a simplex-only device, you can do the +same, using two different filters and a few additional steps.</para> + +<para>Depending on your model, first use the filter for printing the +<quote>odd</quote> pages, then insert the paper in the correct order +back into the paper tray to get the even pages printed on the reverse +side. These can then be folded to make a pamphlet.</para> +</listitem> +</varlistentry> + +</variablelist> + +</listitem> +</varlistentry> +</variablelist> +</sect1> +<sect1 id="cups-plugin"> +<title>&CUPS; Support: the Most Important Module in &kdeprint;</title> + +<para>&kdeprint; contains a module for &CUPS;. &CUPS;, the +<quote>Common &UNIX; Printing System</quote> (<ulink +url="http://www.cups.org">http://www.cups.org/</ulink>), is the most +advanced, powerful and flexible of all print subsystems on &UNIX; and +other &UNIX;-like operating systems. It is still quite new on the +horizon, but is based on <acronym>IPP</acronym>, the Internet Printing +Protocol, the newly emerging standard for the future of network +printing. &CUPS; is clearly the print system of choice for Michael +Goffioul, the principal &kdeprint; developer.</para> + +<para>Experienced &kde; users may already be familiar with Michael's +utilities <application>qtcups</application> and +<application>kups</application> (co-developed with Jean-Eric Cuendet). +These were, up until now, the graphical +&GUI; front ends for &CUPS; with a strong relation to &kde;.</para> + +<sect2> +<title><application>qtcups</application> and +<application>kups</application> — The Predecessors</title> + +<para>Both utilities are probably still widely used. For those +not familiar with them, +here are brief explanations.</para> + +<para><application>qtcups</application> was a graphical front end for +the <command>lp</command> or <command>lpr</command> print commands as +installed by &CUPS;. Using <application>qtcups</application> opened a +dialog. This dialog let you comfortably select your printer and the +print job options. <application>qtcups</application> +worked from the command line, or from +within applications, when the application in question had a configurable +print command.</para> + +<para><application>kups</application> was a graphical wrapper to do the +administration tasks for your &CUPS; server, and the &CUPS; daemon at +the heart of it. You could add, delete, modify, configure, start, and +stop printers. You could cancel, delete, move, stop and restart print +jobs, and you could change the settings of the daemon, start, stop, and +restart it.</para> + +</sect2> + +<sect2> +<title>&kdeprint; — The Heir</title> + +<para>The &CUPS; Module in &kdeprint; now contains all (and more) +functions that were provided by <application>qtcups</application> and +<application>kups</application> in former &kde; versions.</para> + +<para>Instead of <command>qtcups</command> you can now use the +<command>kprinter</command> command. And in place of +<command>kups</command> you will probably use +<command>kcmshell printers</command> from now on. +</para> + +<para>The &kdeprint; module for &CUPS; also lets you fully administer +the print subsystem, just like <application>kups</application> did +before. It can start, stop and configure your &CUPS; daemon. It can also +start, stop, add and delete <quote>printers</quote> (&ie; printer +queues) and printer <quote>instances</quote>. Printer instances are +printer queues that point to the same physical output device but with a +different default setting of print options.</para> + +</sect2> + +<sect2> +<title>&kprinter; — Graphical Print Command</title> + +<para>&kdeprint;'s &CUPS; module gives you access to a <quote>graphical +print command</quote>, like <application>qtcups</application> did +before.</para> + +<para>Use &kprinter; in any application, even a non-&kde; +application, that lets you configure your print command. Examples of +these are &Netscape; and <application>StarOffice</application>, but +<emphasis>not</emphasis> most pre-&kde; 2.2 programs.</para> + +<para>A screenshot how to use the new <command>kprinter</command> +print command instead of the old-fashioned <command>lpr</command>... +Of course you need to have <command>kprinter</command> in your +$<envar>PATH</envar>, or give the full path in the dialog; ⪚ +<userinput><filename>/opt/kde/bin/kprinter</filename></userinput>. +&Netscape; will remember this and with further print jobs you will get +the <command>kprinter</command> dialog to configure your printouts.</para> + +<screenshot> +<screeninfo>A screenshot of the <command>kprinter</command> print +command in action.</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="kprinter-as-netscape-printcommand.png" format="PNG"/> +</imageobject> +<textobject> +<phrase>Here's a screenshot showing how to use the new +<command>kprinter</command> print command +instead of the old-fashioned <command>lp</command> or +<command>lpr</command> in &Netscape;.</phrase> +</textobject> +</mediaobject> +</screenshot> + +<para>You can also use <command>&kprinter;</command> from the +command line and see the resulting dialog box pop up:</para> + +<screenshot> +<screeninfo>Screenshot of the <command>kprinter</command> command</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="kprinter.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Screenshot showing use of the <command>kprinter</command> command +from the command line.</phrase></textobject> +</mediaobject> +</screenshot> + +<note><para>Just make sure you give at least the file to be printed +from the command line as well: <userinput><command>kprinter</command> +<option>/usr/share/doc/packages/cups/sam.pdf</option></userinput>. +This will hand over the &CUPS; Software Administrator Manual to the +<command>kprinter</command> dialog, which will then pop up with the +default printer pre-selected.</para> + +<para>To pre-select a specific printer from the command line, use the +<option>-d</option> option, ⪚: +<userinput><command>kprinter</command> <option>-d +DANKAcolorC2000</option> +<option>/home/kurt/linuxtag2001-paper.ps</option></userinput>. You +can still de-select the printer <option>DANKAcolorC2000</option> and +choose a different one.</para> + +<para> You <emphasis>cannot</emphasis> however call +<userinput><command>kprinter</command></userinput> +without a print file and hope to open a file selection +dialog box from the &kprinter; window. This is a feature that will be +implemented only in the next version.</para> +</note> + +<para>Using <command>kprinter</command> you are able to <quote>ring +all the bells and blow all the whistles</quote> of your printer. You +will need a device-specific so-called &PPD; (&PostScript; Printer +Description) to enable &CUPS; to make this nice tandem team do this +for you. Read more about this in <xref linkend="ppd-files"/>.</para> + +</sect2> + +</sect1> + +<sect1 id="future-plans"> +<title>Plans for Future Development</title> + +<para>What you have now is the first, already very feature-rich +version of &kdeprint;. This version is, of course, fully usable for +printing. You might even think that <quote>it was never so +easy</quote> (not even back in the days when you had to use +&Microsoft; &Windows;).</para> + +<para> In the future, &kdeprint; will become even better. It will do a +better job of <quote>detecting</quote> your installed print subsystem +itself. Already &kdeprint; is doing quite well in automatically +sensing if you have &CUPS; on your system. But in many cases you will +have to tell &kdeprint; what you are using, if you want to keep a +legacy print system.</para> + +<para>The most important improvement in the near future will be a +completion of the <application>LPRng</application> plugin. This at +present is still very basic. It is restricted to the pure classical +<acronym>LPD</acronym> part of +<application>LPRng</application>.</para> + +<para>Also, you may be able to add printers directly from the print +dialog to your system <quote>just in time</quote>, without going to +&kcontrol; first.</para> + +<para>Some smaller improvements already planned are:</para> + +<itemizedlist> +<listitem><para>add a file selection dialog from the &kprinter; window +to allow combining of additional files to the present +printjob</para></listitem> <listitem><para>add a +<quote>history</quote> button to the +<application>KJobViewer</application> window and also a column to show +the number of pages &CUPS; calculates for the job.</para></listitem> +</itemizedlist> + +<para>Finally, there will be an <quote>IO slave</quote> that will give +you access to your print subsystem, via &konqueror; for example. With +this you will soon be able to browse your print subsystem from +&konqueror; through a &URL; like shortcut such as +<userinput>print://printers/printername</userinput>. A KPart will add +a virtual folder to the services section of the &konqueror; navigation +panel, giving a nice integrated way to browse and manage your print +system via the &URL; <userinput>print:/manager</userinput>.</para> + +<para>Please contact Michael Goffioul at <email>[email protected]</email> +with any further user or developer suggestions.</para> + +</sect1> +</chapter> diff --git a/doc/kdeprint/index.docbook b/doc/kdeprint/index.docbook new file mode 100644 index 000000000..79ef27770 --- /dev/null +++ b/doc/kdeprint/index.docbook @@ -0,0 +1,200 @@ +<?xml version="1.0" ?> +<!DOCTYPE book PUBLIC "-//KDE//DTD DocBook XML V4.2-Based Variant V1.1//EN" +"dtd/kdex.dtd" [ + <!ENTITY CUPS "<acronym>CUPS</acronym>"> + <!ENTITY PPD "<acronym>PPD</acronym>"> + <!ENTITY IPP "<acronym>IPP</acronym>"> + <!ENTITY ghostscript "<application>ghostscript</application>"> + <!ENTITY tech-overview-doc SYSTEM "tech-overview.docbook"> + <!ENTITY highlights-doc SYSTEM "highlights.docbook"> + <!ENTITY getting-started-doc SYSTEM "getting-started.docbook"> + <!ENTITY theory-doc SYSTEM "theory.docbook"> + <!ENTITY cups-configuration-doc SYSTEM "cups-config.docbook"> + <!ENTITY add-printer-wizard-2-doc SYSTEM "add-printer-wiz.docbook"> + <!ENTITY cupsoptions-presently-outside-kcontrol-doc SYSTEM +"cupsoptions.docbook"> + <!ENTITY rlpr-doc SYSTEM "rlpr.docbook"> + <!ENTITY lpd-doc SYSTEM "lpd.docbook"> + <!ENTITY lpr-bsd-doc SYSTEM "lpr-bsd.docbook"> + <!ENTITY lprng-doc SYSTEM "lprng.docbook"> + <!ENTITY external-command-doc SYSTEM "external-command.docbook"> + <!ENTITY extensions-doc SYSTEM "extensions.docbook"> + <!ENTITY final-word-doc SYSTEM "final-word.docbook"> + <!ENTITY kappname "&kdeprint;"><!-- replace kapp here --> + <!ENTITY % addindex "IGNORE"> + <!ENTITY % English "INCLUDE"><!-- change language only here --> +]> + +<book lang="&language;"> + +<bookinfo> +<title>The &kdeprint; Handbook</title> + +<authorgroup> +<author> +<firstname>Kurt</firstname> +<surname>Pfeifle</surname> +<affiliation> +<address><email>[email protected]</email></address> +</affiliation> +</author> + +<othercredit role="developer"> +<firstname>Michael</firstname> +<surname>Goffioul</surname> +<affiliation> +<address><email>[email protected]</email></address> +</affiliation> +<contrib>Developer</contrib> +</othercredit> + +<othercredit role="reviewer"> +<firstname>Lauri</firstname> +<surname>Watts</surname> +<affiliation> +<address><email>[email protected]</email></address> +</affiliation> +<contrib>Reviewer</contrib> +</othercredit> + +<!-- TRANS:ROLES_OF_TRANSLATORS --> + +</authorgroup> + +<copyright> +<year>2001</year> +<holder>Kurt Pfeifle</holder> +</copyright> + +<legalnotice>&FDLNotice;</legalnotice> + +<date>2001-08-09</date> +<releaseinfo>1.00.04</releaseinfo> + +<abstract> +<para>This handbook describes &kdeprint;. &kdeprint; is not a standalone +program. It is the new printing framework for &kde; 2.2. &kdeprint; +is an intermediate layer between &kde; (or other) applications and the selected +(and installed) print subsystem of your OS (&OS;).</para> +</abstract> + +<keywordset> +<keyword>KDE</keyword> +<keyword>kdebase</keyword> +<keyword>kdeprint</keyword> +<keyword>print</keyword> +<keyword>printing</keyword> +<keyword>CUPS</keyword> +<keyword>LPR</keyword> +</keywordset> + +</bookinfo> + +<chapter id="introduction"> +<title>Introduction</title> + +<para>This handbook describes &kdeprint;. &kdeprint; is not a standalone +program. It is the new printing framework for &kde; 2.2. &kdeprint; +is an intermediate layer between &kde; (or other) applications and the selected +(and installed) print subsystem of your OS (&OS;).</para> + +<para>It should be noted that both the developer of this application, +and the author of this document are most familiar with &CUPS; as a +printing system. At the time of writing, &CUPS; is the best supported +printing subsystem, and it is the best documented.</para> + +<para>This handbook is a work in progress, and later versions of the +&kdeprint; software and editions of this handbook will support and +explore more closely other printing systems.</para> + +<para>In the meantime, even if your printing subsystem is not yet well +covered, you are encouraged to explore the <guilabel>Printing +Manager</guilabel> module in &kcontrol;, and you will find its +operation to hopefully be fairly self evident, no matter what printing +subsystem you use.</para> + +<para>Lauri Watts, &kde; documentation team</para> + +<!-- Insert here screenshot : <steinbruch_scaled.png> --> + +<sect1> +<title>To configure your printing subsystem from &kcontrol;</title> + +<para>To configure your printing subsystem from &kcontrol;, go to +<menuchoice><guilabel>System</guilabel><guilabel>Printing +Manager</guilabel></menuchoice> and select your subsystem. Or you can +let &kdeprint; try to determine it... </para> + +<screenshot> +<screeninfo>&CUPS; Printing Manager dialog: overview via &kcontrol;</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="steinbruch_scaled.png" +format="PNG"/></imageobject> +<textobject> +<phrase>The dialog to configure the &CUPS; server: security +settings</phrase></textobject> +<caption><para>Configuration of printing subsystem from +&kcontrol;</para></caption> +</mediaobject> +</screenshot> +</sect1> + +</chapter> + +&tech-overview-doc; + +&highlights-doc; + +&theory-doc; + +&getting-started-doc; + +&cups-configuration-doc; + +&add-printer-wizard-2-doc; + +&cupsoptions-presently-outside-kcontrol-doc; + +&rlpr-doc; + +&lpd-doc; + +&lpr-bsd-doc; + +&lprng-doc; + +&external-command-doc; + +&extensions-doc; + +&final-word-doc; + +<chapter id="credits-and-license"> +<title>Credits And Licenses</title> + +<para>&kdeprint; copyright 2001, Michael Goffioul +<email>[email protected]</email></para> +&underGPL; + +<para>Documentation copyright 2001, Kurt Pfeifle, +<email>[email protected]</email></para> +&underFDL; + +<!-- TRANS:CREDIT_FOR_TRANSLATORS --> + +</chapter> + +</book> + +<!-- +Local Variables: +mode: sgml +sgml-minimize-attributes:nil +sgml-general-insert-case:lower +sgml-indent-step:0 +sgml-indent-data:nil +End: + +// vim:ts=2:sw=2:tw=78:noet +--> diff --git a/doc/kdeprint/kcontrol-icon.png b/doc/kdeprint/kcontrol-icon.png Binary files differnew file mode 100644 index 000000000..8fbaacd79 --- /dev/null +++ b/doc/kdeprint/kcontrol-icon.png diff --git a/doc/kdeprint/kcontrolcenter-printmanager-jobcontrol-2.png b/doc/kdeprint/kcontrolcenter-printmanager-jobcontrol-2.png Binary files differnew file mode 100644 index 000000000..d7132b1cd --- /dev/null +++ b/doc/kdeprint/kcontrolcenter-printmanager-jobcontrol-2.png diff --git a/doc/kdeprint/kcron_to_be_printed.png b/doc/kdeprint/kcron_to_be_printed.png Binary files differnew file mode 100644 index 000000000..114b26b3c --- /dev/null +++ b/doc/kdeprint/kcron_to_be_printed.png diff --git a/doc/kdeprint/kdeprint-jobviewer.png b/doc/kdeprint/kdeprint-jobviewer.png Binary files differnew file mode 100644 index 000000000..8182e4317 --- /dev/null +++ b/doc/kdeprint/kdeprint-jobviewer.png diff --git a/doc/kdeprint/kprinter-as-netscape-printcommand.png b/doc/kdeprint/kprinter-as-netscape-printcommand.png Binary files differnew file mode 100644 index 000000000..0780e2a80 --- /dev/null +++ b/doc/kdeprint/kprinter-as-netscape-printcommand.png diff --git a/doc/kdeprint/kprinter-kivio.png b/doc/kdeprint/kprinter-kivio.png Binary files differnew file mode 100644 index 000000000..b36b49b89 --- /dev/null +++ b/doc/kdeprint/kprinter-kivio.png diff --git a/doc/kdeprint/kprinter.png b/doc/kdeprint/kprinter.png Binary files differnew file mode 100644 index 000000000..f83cfcd4b --- /dev/null +++ b/doc/kdeprint/kprinter.png diff --git a/doc/kdeprint/kprinter_called_from_run_command.png b/doc/kdeprint/kprinter_called_from_run_command.png Binary files differnew file mode 100644 index 000000000..b02070c1d --- /dev/null +++ b/doc/kdeprint/kprinter_called_from_run_command.png diff --git a/doc/kdeprint/kprinter_with_kcron_developer_special.png b/doc/kdeprint/kprinter_with_kcron_developer_special.png Binary files differnew file mode 100644 index 000000000..dc9b785cf --- /dev/null +++ b/doc/kdeprint/kprinter_with_kcron_developer_special.png diff --git a/doc/kdeprint/lpd.docbook b/doc/kdeprint/lpd.docbook new file mode 100644 index 000000000..cc555e399 --- /dev/null +++ b/doc/kdeprint/lpd.docbook @@ -0,0 +1,18 @@ +<chapter id="lpd-module"> +<title>Generic <acronym>LPD</acronym> Module (&UNIX;)</title> + + +<sect1> +<title>Overview of Provided Features</title> + +<para>Module used by default (on first start for example).</para> + +<para>Generic module that only allows sending of print jobs. No printer or +job management supported. It is made to work on a wide variety of &UNIX; +flavors: &Linux;/<acronym>LPR</acronym>, &HP-UX;, Solaris, &IRIX;. +It also supports some <application>LPRng</application> extensions (like +the absence of continuation character <literal>\</literal> in +<filename>printcap</filename> files).</para> + +</sect1> +</chapter> diff --git a/doc/kdeprint/lpr-bsd.docbook b/doc/kdeprint/lpr-bsd.docbook new file mode 100644 index 000000000..007fbc6e5 --- /dev/null +++ b/doc/kdeprint/lpr-bsd.docbook @@ -0,0 +1,25 @@ +<chapter id="lpr-bsd-style-module"> +<title><acronym>LPR</acronym> (<acronym>BSD</acronym>)</title> + +<para>Plain (old?) <acronym>LPR</acronym> support. An +<acronym>LPRng</acronym> module is in development, and hopefully +available for 2.3 release.</para> + +<sect1> +<title>Overview of Provided Features</title> + +<itemizedlist> +<listitem> +<para>Printer management: basic support to add/remove/configure a +printer, compatible with &RedHat;-6.x systems +(<command>printtool</command> + rhs-printfilers packages).</para> +</listitem> +<listitem> +<para>Job management: not supported</para> +</listitem> +<listitem> +<para>Print options: basic control</para> +</listitem> +</itemizedlist> +</sect1> +</chapter> diff --git a/doc/kdeprint/lprng.docbook b/doc/kdeprint/lprng.docbook new file mode 100644 index 000000000..5117664e0 --- /dev/null +++ b/doc/kdeprint/lprng.docbook @@ -0,0 +1,7 @@ +<chapter id="lprng-module"> +<title><application>LPRng</application></title> + +<para>An <application>LPRng</application> module for &kdeprint; is in +development, and hopefully available for the &kde; 2.3 release.</para> + +</chapter> diff --git a/doc/kdeprint/ps-boxes.png b/doc/kdeprint/ps-boxes.png Binary files differnew file mode 100644 index 000000000..a24f845a7 --- /dev/null +++ b/doc/kdeprint/ps-boxes.png diff --git a/doc/kdeprint/rlpr.docbook b/doc/kdeprint/rlpr.docbook new file mode 100644 index 000000000..fab48d7bb --- /dev/null +++ b/doc/kdeprint/rlpr.docbook @@ -0,0 +1,18 @@ +<chapter id="rlpr-module"> +<title>Module Built Around <application>rlpr</application> +Utility</title> + +<sect1> +<title>Overview of provided features</title> + +<para>Printer management: basic operations are supported +(add/remove/modify).</para> + +<para>Each user can predefine the printers he wants to use by specifying +the host and related printer queues. Printers are stored on a <quote>per +user basis</quote>. This module is built around the +<application>rlpr</application> utility <ulink +url="http://truffula.com/rlpr/">rlpr</ulink></para> + +</sect1> +</chapter> diff --git a/doc/kdeprint/steinbruch_scaled.png b/doc/kdeprint/steinbruch_scaled.png Binary files differnew file mode 100644 index 000000000..57e6fde76 --- /dev/null +++ b/doc/kdeprint/steinbruch_scaled.png diff --git a/doc/kdeprint/tech-overview.docbook b/doc/kdeprint/tech-overview.docbook new file mode 100644 index 000000000..96b3888e9 --- /dev/null +++ b/doc/kdeprint/tech-overview.docbook @@ -0,0 +1,280 @@ +<chapter id="technical-overview"> +<title>Technical Overview</title> + +<para>This chapter aims to give a technical overview of &kdeprint; which +non-programmers can comprehend.</para> + +<para>&kdeprint; is a new and revolutionary tool to give easy access to +printing services for both &kde; users and &kde; developers.</para> + +<sect1 id="brief-description"> +<title>A Brief Description of &kdeprint;</title> + +<para>You can access the functions of &kdeprint; in different ways: +through the Printing Manger in the &kcontrol;, through the +<command>kprinter</command> command or through the dialog that pops up +if you want to print.</para> + +<sect2 id="what-kdeprint-is-not"> +<title>What it is <emphasis>not</emphasis></title> + +<para>&kdeprint; is <emphasis>not</emphasis> a replacement for the +printing subsystem itself. &kdeprint; does <emphasis>not</emphasis> +therefore give provision for spooling, and it does +<emphasis>not</emphasis> do the basic processing of &PostScript; or +other print data.</para> + +</sect2> + +<sect2 id="what-kde-print-is"> +<title>What it <emphasis>is</emphasis></title> +<para>&kdeprint; is an intermediate layer between the spooling and the +data processing print subsystem (as installed), and the application that +seeks to print. &kdeprint; provides a common interface for &kde; +developers and &kde; users, to various supported print subsystems. At +the same time, it is customizable, and highly configurable.</para> + +<para>&kdeprint; is easy to use for both &kde; developers and end-users. +Developers can port their applications, with minimal changes, to use +&kdeprint; instead of the old &Qt; print <quote>system</quote>. Users +can easily choose and configure their print subsystem.</para> + +<para>For a reference to new &kde; users: &Qt; is the basic library and +graphical toolkit, which is used by all &kde; applications; &Qt; is +developed by TrollTech, a Norwegian software company.</para> + +</sect2> + +</sect1> + +<sect1 id="different-users"> +<title>&kdeprint; -- Different Usage for Different People</title> + +<para>&kdeprint; has different faces for different people.</para> + +<sect2 id="what-users-can-do"> +<title>What users and administrators can do with &kdeprint;</title> + +<para>&kdeprint; allows users and/or administrators, depending on their +rights, access to printing subsystems (&CUPS;, <acronym>LPD</acronym>, +<acronym>RLPR</acronym>, <application>LPRng</application>, +<application>PDQ</application> &etc;) through a &kde; graphical user +interface (&GUI;). Using &kdeprint;, they can print, administer jobs, +printers and the printing daemon, all in a comfortable manner.</para> + +<para>Experienced users will like the capability to plug any working +filter for the print data between the output of their application and +the input, into the chosen print subsystem. Some examples for this +already ship with <quote>plain vanilla</quote> &kdeprint;. Read +on.</para> + +</sect2> + + +<sect2 id="what-developers-can-do"> +<title>What &kde; developers can do with it...</title> + +<para>If a &kde; developer needs printing access for his application, he +does not code the printing functions from scratch. Before &kde; 2.2 this +service was provided by the <classname>QPrinter</classname> class, a +library function of the &Qt; Toolkit. The +<classname>QPrinter</classname> class relied on the out-moded +<quote>Line Printer Daemon</quote> (<acronym>LPD</acronym>). The +&kdeprint; library bases itself firmly on the more modern Common &UNIX; +Printing System (&CUPS;), while at the same time keeping backward +compatibility with <acronym>LPD</acronym> and other legacy, or less +elaborate, print systems. It also <quote>leaves the door open</quote> +for any new development that might occur.</para> + +<para>For &kde; developers to use the new &kdeprint; class in their +applications, they require only minimal changes to their code: for every +call of <classname>QPrinter</classname>, they just need to change this to +<classname>KPrinter</classname>. Replacing one (!) letter in a few +spots, and automatically they are done; their application can then use +all of the features of the new &kdeprint; library.</para> + +<para>More ambitious developers, or ones with special requirements, can +do more: despite &kdeprint;'s feature-rich framework, they are still able +to customize the print dialog of their application +by creating an additional <quote>Tab</quote>, where their +extensions to the standard &kdeprint; will feel right at home.</para> + + +<para>This last mentioned feature has not been used widely inside +&kde; so far, as developers are not yet fully aware of &kdeprint;'s +power. Expect more of this in the near future. One example I +discovered is the &kcron; application. It lets you edit the crontab +through a &GUI;. The developers have implemented a printing feature +that lets you (or <systemitem class="username">root</systemitem>) +choose if you want to print the whole of crontab (for all users) or +just the part that is marked. You can see the effects on &kdeprint; +in the following screenshots.</para> + +<para>This shot shows a sample from the &kcron; utility. +<screenshot> +<screeninfo>&kcron; utility: a small sample of a system's cronjobs as +shown through the &kde; <acronym>GUI</acronym>&GUI;.</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="kcron_to_be_printed.png" +format="PNG"/></imageobject> +<textobject> +<phrase>The &kcron; developers let you choose to print the whole of the +cron table or just the marked part of it.</phrase></textobject> +</mediaobject> +</screenshot> +</para> + +<para>The dialog to configure &kcron;'s printing options: the +additional tab titled <guilabel>Cron Options</guilabel> is from inside +&kcron;, not &kdeprint;; it is a special extension added by the +&kcron; developers for printing purposes, not originating from, but +executed by &kdeprint;. Developers of other applications are free +to implement their own goodies, if they feel need for it.</para> + + +<screenshot> +<screeninfo>&kcron;'s addition to the &kdeprint; dialog.</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="kprinter_with_kcron_developer_special.png" +format="PNG"/></imageobject> +<textobject> +<phrase>&kcron;'s addition to the &kdeprint; dialog.</phrase></textobject> +<caption> +<para>&kcron;'s addition to the &kdeprint; dialog.</para> +</caption> +</mediaobject> +</screenshot> + +</sect2> + +<sect2> +<title>What &kdeprint; offers to everybody...</title> + +<para>&kdeprint;'s easy-to-use interface for all supported print subsystems +of course does not eliminate basic traditional weaknesses of some of +those systems. But it smooths some rough edges. Different users may use +different printing systems on the same box. A user is free to even +switch <quote>on the fly</quote>, from the print dialog, the print +subsystem to be used for the next job. (This is possible if different +systems are installed in a way that they don't <quote>get in each +other's way</quote>.)</para> + +<para>Most &UNIX; users are used to +<acronym>LPD</acronym> printing. <acronym>LPD</acronym> provides only +basic printing functions, is very inflexible and does not utilize the +many options of more modern print systems like &CUPS;. While also +working remotely over any distance (like every TCP/IP based protocol), +<acronym>LPD</acronym> lacks bi-directional communication, +authentication, access control and encryption support.</para> + +<para>&kdeprint; can use &CUPS; to support:</para> + +<itemizedlist> +<listitem> +<para>Querying the <acronym>LAN</acronym> for available printers,</para> +</listitem> +<listitem> +<para>Basic, Digest, and Certificate Authentication,</para> +</listitem> +<listitem> +<para>Access Control based on <acronym>IP</acronym> addresses, net +addresses, netmasks, host- and domain names,</para> +</listitem> +<listitem> +<para>and 128-Bit TLS or SSL3 encryption of print data, to prevent +eavesdropping, or at least make it much more difficult.</para> +</listitem> +</itemizedlist> + +<para>This makes &kdeprint; a much more robust and reliable solution +than using the venerable <acronym>LPD</acronym>.</para> + +</sect2> +<sect2> +<title>How to access &kdeprint; </title> + +<para>You get access to &kdeprint;, or parts of it, in four different +ways:</para> + +<itemizedlist> +<listitem><para>through your applications: if you call the printing +dialog (either <menuchoice><guilabel>File</guilabel> +<guilabel>Print...</guilabel></menuchoice>) or the button with the +little printer icon on it; this opens the printing +dialog.</para></listitem> + +<listitem><para>through the typed command <command>kprinter</command> +in a <application>terminal</application> or a &konsole; window or from +the <guilabel>Run Command...</guilabel> mini-<acronym>CLI</acronym> +window: this also opens the printing dialog.</para></listitem> + +<listitem><para>from the <inlinemediaobject><imageobject> <imagedata +fileref="kcontrol-icon.png" format="PNG"/></imageobject> +</inlinemediaobject> button, starting &kcontrol;, and then go to +<menuchoice><guilabel>System</guilabel><guilabel>Printing +Manager</guilabel></menuchoice>. This opens the &kdeprint; +administration which is part of the &kcontrolcenter; and also lets +you switch to other parts of the &kcontrol;</para></listitem> + +<listitem><para>from a command line (&konsole; or +mini-<acronym>CLI</acronym>) type <userinput> +<command>kcmshell</command> <option>printers</option></userinput>. +This opens just the &kdeprint; part of &kcontrol; to change your settings +</para></listitem> +</itemizedlist> +<screenshot> +<screeninfo>&kprinter; dialog to be started from <guilabel>Run Command...</guilabel> window</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="kprinter_called_from_run_command.png" +format="PNG"/></imageobject> +<textobject> +<phrase>Starting the &kprinter; dialog from +a <guilabel>Run Command...</guilabel> window.</phrase></textobject> +<caption><para>Starting the &kprinter; dialog from a <guilabel>Run +Command...</guilabel> window.</para></caption> +</mediaobject> +</screenshot> + +<!-- TODO: This one ought to be a screenshot LW. --> <para>Here is a +&kivio; drawing of the &kprinter; dialog as it pops up after being +started... You can always add a new printer by clicking on the small +<guiicon>Wizard</guiicon> button (marked red/yellow in this +drawing).</para> + +<screenshot> +<screeninfo>&kprinter; dialog started (&kivio; draft drawing) +</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="kprinter-kivio.png" +format="PNG"/></imageobject> +<textobject> +<phrase>&kprinter; dialog started (&kivio; draft drawing)</phrase></textobject> +<caption><para>&kprinter; dialog started (&kivio; draft +drawing)</para></caption> +</mediaobject> +</screenshot> + +</sect2> + +</sect1> + +</chapter> + +<!-- Keep this comment at the end of the file +Local variables: +mode: sgml +sgml-omittag:t +sgml-shorttag:t +sgml-namecase-general:t +sgml-general-insert-case:lower +sgml-minimize-attributes:nil +sgml-always-quote-attributes:t +sgml-indent-step:0 +sgml-indent-data:true +sgml-parent-document:"index.docbook" "book" +End: +--> diff --git a/doc/kdeprint/theory.docbook b/doc/kdeprint/theory.docbook new file mode 100644 index 000000000..a90aa2755 --- /dev/null +++ b/doc/kdeprint/theory.docbook @@ -0,0 +1,690 @@ +<chapter id="theory"> +<title>Some Theoretical Background: &CUPS;, <acronym>IPP</acronym>, +&PostScript; and <application>Ghostscript</application></title> + +<para>This chapter aims to give a bit of theoretical background to +printing in general, and to &CUPS; especially. If you are not in need +of this, you might like to skip ahead to the <link +linkend="getting-started">next chapter</link>. Chances are you will +come back to this chapter at some point anyway, because sometimes one +needs extra theory to solve a practical problem.</para> + +<sect1 id="basics-of-printing"> +<title>Basics About Printing</title> + +<para>Printing is one of the more complicated chapters in +<acronym>IT</acronym> technology.</para> + + +<para>Earlier on in history, every developer of a program that was +capable of producing printable output had to write his own printer +drivers too. That was quite complicated, because different programs +have different file formats. Even programs with the same purpose, for +example: word processors, often do not understand each other's formats. +There was therefore no common interface to all printers, hence the +programmers often supported only a few selected models.</para> + +<para>A new device appearing on the market required the program authors +to write a new driver if they wanted their program to support it. Also +for manufacturers, it was impossible to make sure their device was +supported by any program known to the world (although there were far +fewer than today).</para> + +<para>Having to support ten application programs and a dozen printers, +meant a system administrator had to deal with 120 drivers. So the +development of unified interfaces between programs and printers became +an urgent need.</para> + +<para>The appearance of <quote>Page Description Languages</quote>, +describing the graphical representation of ink and toner on sheets of +paper (or other output devices, like monitors, photo typesetters, &etc;) +in a common way, was a move that filled a big gap. <!-- FIXME --></para> + +<para>One such development was &PostScript; by Adobe. It meant that an +application programmer could concentrate on making his program generate +a &PostScript; language description of his printable page, while +printing device developers could focus on making their devices +&PostScript; literate.</para> + +<para>Of course, over time, there came the development of other description +methods. The most important competitors to &PostScript; were +<acronym>PCL</acronym> (<quote>Print Control Language</quote>, from +&Hewlett-Packard;), <quote>ESC/P</quote> (from Epson) and +<acronym>GDI</acronym> (<quote>Graphical Device Interface</quote> from +&Microsoft;).</para> + +<para>The appearance of these page description languages made life easier, +and facilitated further development for everybody. Yet the fact that there +still remained different, incompatible, and competing page description +languages keeps life for users, administrators, developers and +manufacturers difficult enough.</para> + +<sect2> +<title>&PostScript; in memory - Bitmaps on Paper</title> + +<para>&PostScript; is most heavily used in professional printing +environments such as PrePress and printing service industries. In the +&UNIX; and &Linux; domains, &PostScript; is the predominant standard +as a <acronym>PDL</acronym>. Here, nearly every program generates a +&PostScript; representation of its pages once you push the +<quote>Print</quote> button. Let us look at a simple example of +(hand-made) &PostScript; code. The following listing describes two +simple drawings:</para> + +<example id="coded-postscript"> +<title>&PostScript; Code</title> +<screen>%!PS +100 100 moveto +0 50 rlineto +50 0 rlineto +0 -50 rlineto +closepath +.7 setgray fill +% first box over; next +160 100 moveto +0 60 rlineto +45 10 rlineto +0 -40 rlineto +closepath +.2 setgray fill</screen> +</example> + +<para>This tells the imaginary &PostScript; <quote>pen</quote> to draw +a path of a certain shape, and then fill it with different shades of +gray. The first part translates into more comprehensive English as +<quote>Go to coordinate (100,100), draw a line with length 50 upward; +then one from there to the right, then down again, and finally close +this part. Now fill the drawn shape with 70% darkness gray.</quote></para> + +<example id="rendered-postscript"> +<title>Rendered &PostScript;</title> +<mediaobject> +<imageobject> +<imagedata fileref="ps-boxes.png" format="PNG"/> +</imageobject> +<textobject> +<phrase><xref linkend="coded-postscript"/> example rendered as an +image.</phrase> +</textobject> +</mediaobject> +</example> + +<para>Of course, &PostScript; can be much more complicated than this +simplistic example. It is a fully fledged programming language with +many different operators and functions. You may even write +&PostScript; programs to compute the value of Pi, format a hard disk or +write to a file. The main value and strength of &PostScript; however +lies in the field to describe the layout of graphical objects on a +page: it also can scale, mirror, translate, transform, rotate and +distort everything you can imagine on a piece of paper -- such as +letters in different font representations, figures, shapes, shades, +colors, lines, dots, raster...</para> + +<para>A &PostScript; file is a representation of one or more pages +to be printed, in a relatively abstract way. Ideally, it is meant +to describe the pages in a device-independent way. &PostScript; is +not directly <quote>visible</quote>; it only lives on hard disks +and in <acronym>RAM</acronym> as a coded representation of +future printouts.</para> + +</sect2> + +<sect2> +<title>Raster Images on Paper Sheets</title> + +<para>What you see on a piece of paper is nearly always a +<quote>raster image</quote>. Even if your brain suggests to you that +your eyes see a line: take a good magnifying glass and you will +discover lots of small dots... (One example to the contrary are +lines that have been drawn by <quote>pen plotters</quote>). And that +is the only thing that the <quote>marking engines</quote> of today's +printers can put on paper: simple dots of different colors, size and +resolution, to make up a complete <quote>page image</quote> composed of +different bitmap patterns.</para> + +<para>Different printers need the raster image prepared in different +ways. Thinking about an inkjet device: depending on its resolution, +the number of inks used (the very good ones need 7 different inks, while +cheaper ones might only use 3), the number of available jets (some print +heads have more than 100!) dispensing ink simultaneously, the +<quote>dithering algorithm</quote> used, and many other things, the +final raster format and transfer order to the marking engine is heavily +dependent on the exact model used.</para> + +<para>Back in the early life of the <quote>Line Printer Daemon</quote>, +printers were machines that hammered rows of <acronym>ASCII</acronym> +text mechanically on to long media, folded as a zig-zag paper +<acronym>snake</acronym>, drawn from a cardboard box beneath the +table... What a difference from today!</para> + +</sect2> + + +<sect2> +<title><acronym>RIP</acronym>: From &PostScript; to Raster</title> + +<para>Before the final raster images are put on paper cut-sheets, they +have to be calculated somehow out of their abstract &PostScript; +representation. This is a very computing-intensive process. It is called +the <quote>Raster Imaging Process</quote>, more commonly +<quote><acronym>RIP</acronym></quote>).</para> + +<para>With &PostScript; printers the <acronym>RIP</acronym>-ping is +taken care of by the device itself. You just send the &PostScript; +file to it. The <quote>Raster Imaging Processor</quote> (also called the +<acronym>RIP</acronym>) inside the printer is responsible (and +specialized) to fulfill quite well this task of interpreting the +&PostScript;-page descriptions and put the raster image on paper.</para> + +<para>Smaller &PostScript; devices have a +hardware-<acronym>RIP</acronym> built in; it is etched in silicon, on a +special chip. Big professional printers often have their +<acronym>RIP</acronym> implemented as a software-<acronym>RIP</acronym> +inside a dedicated fast &UNIX; run computer, often a Sun SPARC Solaris +or a &SGI; &IRIX; machine.</para> + +</sect2> + +<sect2> +<title><application>Ghostscript</application> as a Software +<acronym>RIP</acronym></title> + +<para>But what happens, if you are not lucky enough to have a +&PostScript; printer available?</para> + +<para>You need to do the <acronym>RIP</acronym>-ing before you send +the print data to the marking engine. You need to digest the &PostScript; +generated by your application on the host machine (the print client) +itself. You need to know how the exact raster format of the target +printer's marking engine must be composed.</para> + +<para>In other words, as you can't rely on the printer to understand +and interpret the &PostScript; itself, the issue becomes quite a bit +more complicated. You need software that tries to solve for you the +issues involved.</para> + +<para>This is exactly what the omnipresent &ghostscript; package is +doing for many &Linux;, *BSD and other &UNIX; boxes that need to print +to non-&PostScript; printers: &ghostscript; is a &PostScript; +interpreter, a software <acronym>RIP</acronym> capable of running many +different devices.</para> + +</sect2> + +<sect2> +<title><quote>Drivers</quote> and <quote>Filters</quote> in General</title> + +<para>To produce rasterized bitmaps from &PostScript; input, the +concept of <quote>filters</quote> is used by &ghostscript;. There are +many different filters in &ghostscript;, some of them specialized for +a certain model of printer. &ghostscript; filterspecializedin devices +have often been developed without the consent or support of the +manufacturer concerned. Without access to the specifications and +documentation, it was a very painstaking process to reverse engineer +protocols and data formats.</para> + +<para>Not all &ghostscript; filters work equally well for their +printers. Yet, some of the newer ones, like the +<application>stp</application> Filter of the +<application>Gimp</application> Print project, produce excellent +results leading to photographic quality on a par or even superior to +their &Microsoft; &Windows; driver counterparts.</para> + +<para>&PostScript; is what most application programs produce for +printing in &UNIX; and &Linux;. Filters are the true workhorses of +any printing system there. Essentially they produce the right bitmaps +from any &PostScript; input for non-&PostScript; target +engines.</para> + +</sect2> + +<sect2> +<title>Drivers and Filters and Backends in CUPS</title> + +<para>&CUPS; uses its own filters, though the filtering system is +based on Ghostscript. Namely the pstoraster and the imagetoraster +filters are directly derived from Ghostscript code. &CUPS; has +reorganized and streamlined the whole mechanics of this legacy code +and organized it into a few clear and distinct modules.</para> + +<para>This next drawing (done with the help of &kivio;) gives an +overview of the filters and backends inside &CUPS; and how they fit +together. The <quote>flow</quote> is from top to bottom. Backends +are special filters: they don't convert date to a different format, +but they send the ready files to the printer. There are different +backends for different transfer protocols.</para> + +<screenshot id="architecture-diagram"> +<screeninfo>&kprinter; dialog started (&kivio; draft drawing) +</screeninfo> +<mediaobject> +<imageobject> +<imagedata fileref="cups-filterarchitecture-kivio-70Percent-scaled.png" +format="PNG"/></imageobject> +<textobject> +<phrase>&kprinter; dialog started (&kivio; draft +drawing)</phrase></textobject> +</mediaobject> +</screenshot> + +</sect2> +<sect2> +<title>Spoolers and Printing Daemons</title> + +<para>Besides the heavy part of the filtering task to generate a +print-ready bitmap, any printing software needs to use a SPOOLing +mechanism: this is to line up different jobs from different users for +different printers and different filters and send them accordingly to +the destinations. The printing daemon takes care of all this.</para> + +<para>This daemon is keeping the house in order: it is also +responsible for the job control: users should be allowed to cancel, +stop, restart, &etc; their jobs (but not other peoples's jobs) and so +on.</para> + +</sect2> + +</sect1> + + + +<sect1 id="cups-and-ppd"> +<title>Excursion: How <quote>CUPS</quote> uses the power of +&PPD;s</title> + +<para>Now that you know how a &PostScript; language file (which +describes the page layout in a largely device independent way) is +transformed into a Raster Image, you might ask: +<quote>Well, there are different kinds of raster output devices: first +they differ in their resolution; then there are the different paper +sizes; it goes on with many finishing options (duplex prints, +pamphlets, punched and stapled output with different sheets of colored +paper being drawn from different trays, &etc;). How does this fit into +our model of device-independent &PostScript;?</quote></para> + +<para>The answer comes with so called &PostScript; Printer Description +(&PPD; files. A &PPD; describes all the device dependent features +which can be utilized by a certain printer model. It also contains +the coded commands that must be used to call certain features of the +device. But &PPD;s are not a closed book, they are simple +<acronym>ASCII</acronym> text files.</para> + +<para>&PPD;s were <quote>invented</quote> by Adobe to make it easy for +manufacturers to implement their own features into &PostScript; +printers, and at the same time retain a standard way of doing so. +&PPD;s are well documented and described by Adobe. Their +specification is a de-facto open standard.</para> + +<sect2 id="ppd-files"> +<title>Device Dependent Print Options</title> + +<para>Remember, advanced &PostScript; printing was originally only +developed for use on &Microsoft; &Windows; and Apple &Mac; systems. +For a long time, all of the feature rich printing on modern devices +was simply unavailable for &Linux; and &UNIX;. &CUPS; changes this +decisively. &CUPS; is closely tied with &PPD;s, and therefore existing +&PPD;s can be utilized to the full by all systems powered by +&CUPS;.</para> + +<para>Using &PPD;s, printer manufacturers were able to insert +device-specific hardware features into their products, for features such +as duplexing, stapling, punching, finishing, &etc;. The printer drivers +load this &PPD; just like an additional configuration file. Thus the +printer driver learns about the available device options and how to +call them; the driver also presents them in a &GUI; to the user. Through +this mechanism you are still able to print +<quote>device-independent</quote> &PostScript; page description +language files and specify device-dependent finishing options on top, +which are added to the application-generated &PostScript;.</para> + +</sect2> + +<sect2> +<title>Where to get the &PPD;s for &PostScript; Printers</title> + +<para>&PPD;s originally were not used routinely in &UNIX; and &Linux; +systems. The vendors providing those &PPD;s never intended them for +anything other than the originally supported &OS;s: &Microsoft; &Windows; and +&MacOS;. Through its brilliant move to fully support and utilize +the existing &PPD; specification, &CUPS; now gives the power to use +all features of modern printers to users of &Linux; and &Linux;-like +systems. &kdeprint; makes its usage even more comfortable than the +&CUPS; developers ever dreamed of.</para> + +<para>&CUPS; can use original &Windows; &PPD;s, distributed by the +vendors in the case of &PostScript; printers. Those normally don't +cost any money, and they can be grabbed from any &Windows; computer +with an installed &PostScript; driver for the model concerned, or from +the disks provided with the printer. There are also several places on +the web to download them.</para> + +</sect2> + +<sect2> +<title>How Special &PPD;s are Now Useful Even For Non-&PostScript; +Printers.</title> + +<para>Now you know how &PostScript;-Printers can use &PPD;s. But what +about non-&PostScript; printers? &CUPS; has done a very good trick: by +using the same format and data structure as the &PostScript; Printer +Descriptions (&PPD;s) in the &PostScript; world, it can describe the +available print job options for non-&PostScript; printers just the +same. For its own special purposes &CUPS; just added a few special +options (namely the line which defines the filter to be used for +further processing of the &PostScript; file).</para> + +<para>So, the developers could use the same software engine to parse +the Printer Description Files for available options for all sorts of +printers. Of course the &CUPS; developers could not rely on the +non-&PostScript; hardware manufacturers to suddenly develop &PPD;s. +They had to do the difficult start themselves and write them from +scratch. More than 1000 of these are available through the commercial +version of &CUPS;, called <application>ESP +PrintPro</application>.</para> + +<para>Meanwhile there are a lot of &CUPS;-specific &PPD;s available. +Even now those are in most cases not originating from the printer +manufacturers, but from Free software developers. The &CUPS; folks +proofed it, and others followed suit: where &Linux; and &UNIX; +printing one or two years ago still was a kludge, it is now able to +support a big range of printers, including 7-color inkjets capable of +pushing them to Photo Quality output.</para> + +</sect2> + +<sect2> +<title>Different Ways to get &PPD;s for non-&PostScript; +Printers</title> + +<para>You can get &PPD;s to be used with &CUPS; and non-&PostScript; +printers from different areas in the Web:</para> + +<itemizedlist> +<listitem> +<para> first, there is the repository at <ulink +url="http://www.linuxprinting.org">www.linuxprinting.org</ulink>, +which lets you generate a <quote>CUPS-O-Matic</quote>-&PPD; online for +any printer that had been supported by traditional &ghostscript; +printing already. This helps you to switch over to &CUPS; with little +effort, if you wish so. If your printer was doing well with the +traditional way of &ghostscript; printing, take CUPS-O-Matic to plug +your driver into th e &CUPS; system and you'll have the best of both +worlds.</para> +</listitem> + +<listitem> +<para>second, there are &CUPS;-&PPD;s for the more than 120 printer +models, which are driven by the new universal +<application>stp</application> driver. <application>stp</application> +(stood originally for Stylus Photo) is now developed by the gimp-print +project; it was started by Mike Sweet, the leading &CUPS; developer +and is now available through <ulink +url="http://gimp-print.sourceforge.net">gimp-print.sourceforge.net</ulink>. +This driver prints real Photo quality on many modern inkjets and can +be configured to make 120 &CUPS;-&PPD;s along its own +compilation. &HP; Laser- and DeskJet, <trademark +class="registered">Epson</trademark> Stylus and Photo Color models as +well as some <trademark class="registered">Canon</trademark> and +<trademark class="registered">Lexmark</trademark> are covered.</para> +</listitem> + +<listitem> +<para>third, there is the commercial extension to &CUPS; from the +&CUPS; developers themselves: it is called <application>ESP +PrintPro</application> and comes with more than 2.300 printer +drivers. There are even improved imagetoraster and pstoraster filters +included.</para> +</listitem> +</itemizedlist> + +<para>&CUPS; makes it really easy for manufacturers to start +supporting &Linux; and &UNIX; printing for their models at reasonably +low cost. The modular framework of &CUPS; facilitates to plug in any +filter (=driver) with minimal effort and to access and utilize the +whole printing framework that &CUPS; is creating.</para> + +<para>Read more about the exciting &CUPS; features in the available +&CUPS; documentation at <ulink +url="http://www.cups.org/documentation.html">http://www.cups.org/documentation.html</ulink> +and <ulink +url="http://wwww.danka.de/printpro/faq.html">http://www.danka.de/printpro/faq.html</ulink>. +Also at <ulink +url="http://www.linuxprinting.org">http://www.linuxprinting.org/</ulink> +is a universal repository for all issues related to &Linux; and &UNIX; +printing.</para> + +</sect2> + +</sect1> + +<sect1 id="cups-ipp-support"> +<title>How &IPP; Support Makes &CUPS; the Best Choice Around</title> + +<sect2> +<title><quote><acronym>LPD</acronym> Must Die!</quote></title> + +<para>For a long time many developers were deeply dissatisfied with good +old <acronym>LPD</acronym>. Quite a few new projects were started to +improve printing: <application>LPRng</application> is the best known +example. Others are <acronym>PDQ</acronym>, <acronym>PPR</acronym>, +<acronym>PLP</acronym>, <acronym>GNUlpr</acronym> and +<acronym>RLPR</acronym>. But none of the new programs were seen as a +<quote>big shot</quote>; most of them are just implementing the same old +<acronym>LPD</acronym> specification with a few (or many) new +extensions, which again make them incompatible with each other.</para> + +<para>Having seen the development of not just one, but different +viable alternatives to venerable <acronym>BSD</acronym>-style +<acronym>LPD</acronym>, Grant Taylor, author of the <citetitle>Linux +Printing HOWTO</citetitle>, finally rallied the call <citetitle>LPD +Must Die!</citetitle> in his <quote>Campaign To Abolish The Line +Printer Daemon</quote>.</para> + +<!-- FIXME: look up URLs for the above --> + +</sect2> + +<sect2> +<title>How the &IPP; Came to Be</title> + +<para>Along with the above, on the industry side of things, there were +efforts to overcome the well-known weaknesses of +<acronym>LPD</acronym>. It started with proprietary extensions to +plain old <acronym>LPD</acronym>, and stretched as far as +&Hewlett-Packard;'s attempt to establish &HP; JetDirect as a new +standard for a network printing protocol. The result were even more +incompatibilities.</para> + +<para>In the end, an initiative to define a new common industry and +<acronym>IETF</acronym> standard took shape. The <quote>Printer +Working Group</quote> or <acronym>PWG</acronym>, a loose aggregation +of vendors in hardware, software, and operating systems, drafted the +new <quote>Internet Printing Protocol</quote>, &IPP;. &IPP; v1.1 has +now been approved by the <acronym>IETF</acronym> (Internet Engineering +Task Force) as a proposed standard, and now enjoys the unanimous +support throughout the industry in Europe, USA and Japan. Most +current network printer models have now built in &IPP; support on top +of traditional <acronym>LPR</acronym>/<acronym>LPD</acronym> or +JetDirect Printing.</para> + +</sect2> + +<sect2> +<title>Why &IPP; is Solving Many Problems</title> + +<para>&IPP; promises to solve a lot of problems network administrators +face. This trade normally deals with heterogeneous network +environments and spends more than half of its working hours dealing +with printing problems.</para> + +<para>By creating a unified set of query functions for &IPP; enabled +printers and servers, for transferring files and setting job-control +attributes &etc;, &IPP; is destined to work across all &OS; platforms. +It's rollout however, will not happen overnight, as many legacy print +devices will still be in use for many years to come. Therefore, in +&IPP; there is a provision made for backwards compatibility of all +&IPP; implementations. &CUPS; is proving the viability of &IPP; +printing in all environments.</para> + +<para>The most striking advantage will be it's integration into the +existing set of other robust <acronym>IP</acronym> protocols. Being +an extension of the proven and robust <acronym>HTTP</acronym> 1.1 +protocol, for the special task of handling print file and related +data, it is also very easy to plug in other standards as they are +being developed and deployed:</para> + +<itemizedlist> +<listitem> +<para>Basic, Digest, and Certificate Authentication for users seeking +access to print services.</para> +</listitem> +<listitem> +<para>SSL3 and <acronym>TLS</acronym> encryption for transferring +data.</para> +</listitem> +<listitem> +<para>Bi directional communication of clients with print devices, using +the <acronym>HTTP</acronym>/&IPP; <command>GET</command> and +<command>POST</command> mechanism.</para> +</listitem> +<listitem> +<para>LDAP directory service integration to keep a consistent database +of available printers, their capabilities and page-costs, &etc;, as well +as user passwords, <acronym>ACL</acronym>s &etc;.</para> +</listitem> +<listitem> +<para><quote>Pull</quote> (as opposed to the usual <quote>Push</quote> +model) printing, where a server or printer just needs to be told the +&URL; of a document, whereupon it is retrieved from the resource on the +internet and printed.</para> +</listitem> +</itemizedlist> + +</sect2> + +<!-- +<sect2> +<title>&CUPS;, &IPP; and &kde;</title> + +<para>&CUPS; is the most advanced implementation of &IPP; on all &OS; +platforms. That makes &CUPS; a crucial ally to help "conquer the +desktop" for projects like &kde;. &kdeprint; is the best utility to +make &CUPS; core functionality available to &kde; Desktop +users.</para> + +</sect2> --> + +<sect2> +<title>Printer <quote>Plug'n'Play</quote> for Clients</title> + +<para>Have you ever seen a demonstration about &CUPS; capabilities in +the network? You must have been quite impressed if you didn't know in +advance what to expect.</para> + +<para>Imagine you as the administrator of a <quote>LAN</quote>. For +testing purposes you fully installed one &kde;/&CUPS; box on your net, +complete with a dozen printers configured and functional: +&PostScript;, LaserJets, InkJets and BubbleJets, and so on. Your +&kde; users on that box are very happy, they can print like never +before, <quote>ringing all the bells and whistles</quote> of every +printer. It took you 2 hours to make everything run perfectly... and +now all the other 100 users on the network want the same. Two hours +again for every box? No way you could do that before next year, you +think?</para> + +<para>Wrong. Just change one setting in the original &CUPS; box to +make it a <quote>server</quote>. Install &CUPS; on five other boxes, +as <quote>clients</quote>. By the time you turn back to your first +client, you find the users happily playing with the settings for the +dozen printers you had defined earlier on the <quote>server</quote>. +Somehow magically the printers had appeared on all the +<quote>Print</quote> dialogs of the five new &CUPS; client +boxes.</para> + +<para>Your users print, but not a single driver had been installed on +the clients, nor a printer queue defined.</para> + +<para>So, how does this magic work?</para> + +</sect2> + +<sect2> +<title><quote>Seeing</quote> Printers Not Installed Locally?</title> + +<para>The answer is not complicated at all.</para> + +<para>If a &CUPS; server is on the <acronym>LAN</acronym>, it +broadcasts the names of all available printers to the +<acronym>LAN</acronym>, using the <acronym>UDP</acronym> protocol and +port 631. Port 631 is reserved as a <quote>well-known port</quote> by +<acronym>IANA</acronym> (the <quote>Internet Assigning Numbers +Authority</quote>) for &IPP; purposes. All &CUPS; clients listen to +&CUPS; server info sent to their port 631. That's how they know about +available printers, and that's how they learn about the +<quote>path</quote> to the printers as well.</para> + +<para>Using &IPP;, which is really a clever extension to +<acronym>HTTP</acronym> v1.1, &CUPS; is able to address all objects +related to the printing system via <quote>Universal Resource +Locators</quote> or <acronym>URL</acronym>s. Print jobs to be deleted +or restarted, printers to be queried or modified, admin tasks to be +performed on the server, with &IPP; and &CUPS;, everything is +addressable by a certain <acronym>URL</acronym>. Many important +things can be done through the web interface to &CUPS;, accessible for +example with &konqueror;.</para> + +</sect2> + +<sect2> +<title>Printing Without Installing a Driver</title> + +<para>And more, the clients basically can <quote>administer</quote> +and <quote>use</quote> any printer they see, just as if it was a +locally installed one. Of course, you can set restrictions on it with +access control lists &etc;, so that not <emphasis>any</emphasis> +clients may use <emphasis>any</emphasis> printer as it likes.</para> + +<para>The clients even are able to print without the appropriate filter +(or driver) installed locally.</para> + +<para>So how does this work? If a client wants to know about and +select printer-specific options, it sends a request (called +<command>CUPS-get-ppd</command>) to the server. The server tells the +client all about all printer-specific options, as read from the server +side &PPD;. The user on the client side can see the options and +select the required ones. He then sends the print file, usually +unfiltered <quote>raw</quote> &PostScript;, spiced up with the +printer-options to the printer server, using &IPP; as the transport +protocol. All further processing, especially the filtering to +generate the final format for the target printer, is then done by the +server. The server has the necessary programs (<quote>drivers</quote> +or <quote>filters</quote>) to do this.</para> + +<para>This way a client prints without needing to install a driver +locally.</para> + +<para>Any change on the server, such as adding or modifying a printer, +is instantly <quote>known</quote> to the clients with no further +configuration.</para> + +</sect2> + +<sect2> +<title><quote>Zero Administration</quote>, Load Balancing, and +<quote>Failover Switching</quote></title> + +<para>Some other advanced features built into &CUPS; are the capacity to +do <quote>load balancing</quote>.</para> + +<para>If you define the same printer queues on two or more different +servers, the clients will send their jobs to the first responding or +available server. This implies an automatic load balancing amongst +servers. If you have to take one server off the network for +maintenance, the others will just take over its tasks without the users +even noticing the difference.</para> + +</sect2> + +</sect1> + +</chapter> |
