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 <H1>CUPS Software Version Description</H1></A><BR>
 CUPS-SVD-1.2<BR>
 Easy Software Products<BR>
 Copyright 1997-2003, All Rights Reserved<BR>
 </CENTER>
 <HR>
 <H1 ALIGN="CENTER"><A NAME="CONTENTS">Table of Contents</A></H1>
 <BR>
 <BR><B><A HREF="#1">1 Scope</A></B>
 <UL>
 <LI><A HREF="#1_1">1.1 Identification</A></LI>
 <LI><A HREF="#1_2">1.2 System Overview</A></LI>
 <LI><A HREF="#1_3">1.3 Document Overview</A></LI>
 </UL>
 <B><A HREF="#2">2 References</A></B>
 <UL>
 <LI><A HREF="#2_1">2.1 CUPS Documentation</A></LI>
 <LI><A HREF="#2_2">2.2 Other Documents</A></LI>
 </UL>
 <B><A HREF="#3">3 Additions</A></B>
 <UL>
 <LI><A HREF="#3_1">3.1 Filters</A></LI>
 <UL>
 <LI><A HREF="#3_1_1">3.1.1 imagetoraster, imagetops</A></LI>
 <LI><A HREF="#3_1_2">3.1.2 pdftops</A></LI>
 <LI><A HREF="#3_1_3">3.1.3 pstoraster</A></LI>
 <LI><A HREF="#3_1_4">3.1.4 rastertoepson</A></LI>
 </UL>
 <LI><A HREF="#3_2">3.2 User-Defined Printers and Options</A></LI>
 <LI><A HREF="#3_3">3.3 Daemons</A></LI>
 <UL>
 <LI><A HREF="#3_3_1">3.3.1 cups-lpd</A></LI>
 <LI><A HREF="#3_3_2">3.3.2 cups-polld</A></LI>
 </UL>
 <LI><A HREF="#3_4">3.4 Commands</A></LI>
 <UL>
 <LI><A HREF="#3_4_1">3.4.1 lpoptions</A></LI>
 <LI><A HREF="#3_4_2">3.4.2 lpmove</A></LI>
 <LI><A HREF="#3_4_3">3.4.3 lpinfo</A></LI>
 </UL>
 <LI><A HREF="#3_5">3.5 IPP Implementation</A></LI>
 </UL>
 <B><A HREF="#4">4 Changes</A></B>
 <UL>
 <LI><A HREF="#4_1">4.1 Directory Structure</A></LI>
 <LI><A HREF="#4_2">4.2 IPP Implementation</A></LI>
 </UL>
 <B><A HREF="#5">A Glossary</A></B>
 <UL>
 <LI><A HREF="#5_1">A.1 Terms</A></LI>
 <LI><A HREF="#5_2">A.2 Acronyms</A></LI>
 </UL>
 <HR>
 <H1><A NAME="1">1 Scope</A></H1>
 <H2><A NAME="1_1">1.1 Identification</A></H2>
  This software version description document provides release information
  for the Common UNIX Printing System (&quot;CUPS&quot;) Version 1.1.
 <H2><A NAME="1_2">1.2 System Overview</A></H2>
 <P>CUPS provides a portable printing layer for UNIX&reg;-based operating
  systems. It has been developed by<A HREF="http://www.easysw.com"> Easy
  Software Products</A> to promote a standard printing solution for all
  UNIX vendors and users. CUPS provides the System V and Berkeley
  command-line interfaces.</P>
 <P>CUPS uses the Internet Printing Protocol (&quot;IPP&quot;) as the basis for
  managing print jobs and queues. The Line Printer Daemon (&quot;LPD&quot;) Server
  Message Block (&quot;SMB&quot;), and AppSocket (a.k.a. JetDirect) protocols are
  also supported with reduced functionality. CUPS adds network printer
  browsing and PostScript Printer Description (&quot;PPD&quot;) based printing
  options to support real-world printing under UNIX.</P>
 <P>CUPS also includes a customized version of GNU Ghostscript (currently
  based off GNU Ghostscript 5.50) and an image file RIP that are used to
  support non-PostScript printers. Sample drivers for HP and EPSON
  printers are included that use these filters.</P>
 <H2><A NAME="1_3">1.3 Document Overview</A></H2>
 <P>This software version description document is organized into the
  following sections:</P>
 <UL>
 <LI><A HREF="#1">1 - Scope</A></LI>
 <LI><A HREF="#2">2 - References</A></LI>
 <LI><A HREF="#3">3 - Additions</A></LI>
 <LI><A HREF="#4">4 - Changes</A></LI>
 <LI><A HREF="#5">A - Glossary</A></LI>
 </UL>
 <H1><A NAME="2">2 References</A></H1>
 <H2><A NAME="2_1">2.1 CUPS Documentation</A></H2>
 <P>The following CUPS documentation is referenced by this document:</P>
 <UL>
 <LI>CUPS-CMP-1.2: CUPS Configuration Management Plan</LI>
 <LI>CUPS-IDD-1.2: CUPS System Interface Design Description</LI>
 <LI>CUPS-IPP-1.2: CUPS Implementation of IPP</LI>
 <LI>CUPS-SAM-1.2.x: CUPS Software Administrators Manual</LI>
 <LI>CUPS-SDD-1.2: CUPS Software Design Description</LI>
 <LI>CUPS-SPM-1.2.x: CUPS Software Programming Manual</LI>
 <LI>CUPS-SSR-1.2: CUPS Software Security Report</LI>
 <LI>CUPS-STP-1.2: CUPS Software Test Plan</LI>
 <LI>CUPS-SUM-1.2.x: CUPS Software Users Manual</LI>
 <LI>CUPS-SVD-1.2: CUPS Software Version Description</LI>
 </UL>
 <H2><A NAME="2_2">2.2 Other Documents</A></H2>
 <P>The following non-CUPS documents are referenced by this document:</P>
 <UL>
 <LI><A HREF="http://partners.adobe.com/asn/developer/PDFS/TN/5003.PPD_Spec_v4.3.pdf">
 Adobe PostScript Printer Description File Format Specification, Version
  4.3.</A></LI>
 <LI><A HREF="http://partners.adobe.com/asn/developer/PDFS/TN/PLRM.pdf">
 Adobe PostScript Language Reference, Third Edition.</A></LI>
 <LI>IPP: Job and Printer Set Operations</LI>
 <LI>IPP/1.1: Encoding and Transport</LI>
 <LI>IPP/1.1: Implementers Guide</LI>
 <LI>IPP/1.1: Model and Semantics</LI>
 <LI><A HREF="http://www.ietf.org/rfc/rfc1179.txt">RFC 1179, Line Printer
  Daemon Protocol</A></LI>
 <LI><A HREF="http://www.ietf.org/rfc/rfc2567.txt">RFC 2567, Design Goals
  for an Internet Printing Protocol</A></LI>
 <LI><A HREF="http://www.ietf.org/rfc/rfc2568.txt">RFC 2568, Rationale
  for the Structure of the Model and Protocol for the Internet Printing
  Protocol</A></LI>
 <LI><A HREF="http://www.ietf.org/rfc/rfc2569.txt">RFC 2569, Mapping
  between LPD and IPP Protocols</A></LI>
 <LI><A HREF="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616, Hypertext
  Transfer Protocol -- HTTP/1.1</A></LI>
 <LI><A HREF="http://www.ietf.org/rfc/rfc2617.txt">RFC 2617, HTTP
  Authentication: Basic and Digest Access</A> Authentication</LI>
 </UL>
 <H1><A NAME="3">3 Additions</A></H1>
 <P>CUPS 1.2 includes many new features from the 1.0.x releases.</P>
 <H2><A NAME="3_1">3.1 Filters</A></H2>
 <H3><A NAME="3_1_1">3.1.1 <CODE>imagetoraster</CODE>, <CODE>imagetops</CODE>
 </A></H3>
 <P>The image file filters have been upgraded to support conversion of
  Microsoft Bitmap (&quot;BMP&quot;) and Alias PIX files.</P>
 <H3><A NAME="3_1_2">3.1.2 pdftops</A></H3>
 <P>A new pdftops filter has been developed that is based on the
  excellent Xpdf 0.90 software from Derek B. Noonburg. The new filter is
  faster, smaller, and considerably more reliable than the
  Ghostscript-based filter in CUPS 1.0.</P>
 <H3><A NAME="3_1_3">3.1.3 pstoraster</A></H3>
 <P>The <CODE>pstoraster</CODE> filter has been integrated with GNU
  GhostScript 5.50. The new RIP supports most Level 3 PostScript language
  features.</P>
 <H3><A NAME="3_1_4">3.1.4 rastertoepson</A></H3>
 <P>The new <CODE>rastertoepson</CODE> filter supports EPSON printers
  using the ESC/P or ESC/P2 command sets. PPDs are supplied for 9-pin,
  24-pin, Stylus Color, and Stylus Photo printers.</P>
 <H2><A NAME="3_2">3.2 User-Defined Printers and Options</A></H2>
 <P>The new <CODE>lpoptions</CODE> command allows users to configure
  default document options and create additional &quot;instances&quot; of existing
  printers, each with unique options.</P>
 <P>The <CODE>lp</CODE>, <CODE>lpr</CODE>, and <CODE>lpstat</CODE>
  commands have been upgraded to use this option and printer instance
  information automatically.</P>
 <H2><A NAME="3_3">3.3 Daemons</A></H2>
 <P>CUPS 1.2 includes two new daemons that provide enhanced network
  printing support.</P>
 <H3><A NAME="3_3_1">3.3.1 cups-lpd</A></H3>
 <P>The <CODE>cups-lpd</CODE> daemon provides support for clients using
  the Line Printer Daemon protocol.</P>
 <H3><A NAME="3_3_2">3.3.2 cups-polld</A></H3>
 <P>The <CODE>cups-polld</CODE> daemon provides remote polling services
  for the scheduler.</P>
 <H2><A NAME="3_4">3.4 Commands</A></H2>
 <P>CUPS 1.2 includes several new printing commands.</P>
 <H3><A NAME="3_4_1">3.4.1 lpoptions</A></H3>
 <P>The <CODE>lpoptions</CODE> command provides user-defined printers and
  options.</P>
 <H3><A NAME="3_4_2">3.4.2 lpmove</A></H3>
 <P>The <CODE>lpmove</CODE> command moves a print job to a new
  destination.</P>
 <H3><A NAME="3_4_3">3.4.3 lpinfo</A></H3>
 <P>The <CODE>lpinfo</CODE> command lists the available PPD files or
  devices.</P>
 <H2><A NAME="3_5">3.5 IPP Implementation</A></H2>
 <P>CUPS 1.2 adds support for the <CODE>set-job-attributes</CODE>
  extension operation as well as two new CUPS-specific extension
  operations to determine which devices and printer drivers are available
  on the system.</P>
 <P>Further information on the CUPS implementation of IPP can be found in
  CUPS-IPP-1.2.</P>
 <H1><A NAME="4">4 Changes</A></H1>
 <P>CUPS 1.2 includes many changes from the 1.1.x releases.</P>
 <H2><A NAME="4_1">4.1 Directory Structure</A></H2>
 <P>The directory structure in CUPS 1.2 has been modified to conform to
  the Filesystem Hierarchy Standard, 2.2. The following table describes
  the new file locations.
 <CENTER>
 <TABLE BORDER WIDTH="80%"><CAPTION> Table 1: Directory structure changes
  from CUPS 1.1.x to 1.2.x.</CAPTION>
 <TR><TH>Description</TH><TH>CUPS 1.1.x</TH><TH>CUPS 1.2.x</TH></TR>
 <TR><TD>Backends</TD><TD>/var/cups/backend</TD><TD>/usr/lib/cups/backend</TD>
 </TR>
 <TR><TD>CGI programs</TD><TD>/var/cups/cgi-bin</TD><TD>
 /usr/lib/cups/cgi-bin</TD></TR>
 <TR><TD>Configuration files</TD><TD>/var/cups/conf</TD><TD>/etc/cups</TD>
 </TR>
 <TR><TD>Documentation</TD><TD>/usr/share/cups/doc</TD><TD>
 /usr/share/doc/cups</TD></TR>
 <TR><TD>Filter programs</TD><TD>/var/cups/filter</TD><TD>
 /usr/lib/cups/filter</TD></TR>
 <TR><TD>Interface scripts</TD><TD>/var/cups/interfaces</TD><TD>
 /etc/cups/interfaces</TD></TR>
 <TR><TD>Locale data</TD><TD>/usr/lib/locale</TD><TD>/usr/share/locale</TD>
 </TR>
 <TR><TD>Log files</TD><TD>/var/cups/logs</TD><TD>/var/log/cups</TD></TR>
 <TR><TD>PPD files</TD><TD>/var/cups/ppd</TD><TD>/etc/cups/ppd</TD></TR>
 <TR><TD>Request files</TD><TD>/var/cups/requests</TD><TD>/var/spool/cups</TD>
 </TR>
 </TABLE>
 </CENTER>
 </P>
 <H2><A NAME="4_2">4.2 IPP Implementation</A></H2>
 <P>CUPS 1.2 is based on version 1.1 of the Internet Printing Protocol.</P>
 <P>The new scheduler supports the <CODE>create-job</CODE> and <CODE>
 send-document</CODE> operations. In addition, the <CODE>job-sheets</CODE>
 , <CODE>job-sheets-default</CODE>, and <CODE>job-sheets-supported</CODE>
  attributes are now supported for banner pages.</P>
 <P>The <CODE>CUPS-get-printers</CODE> and <CODE>CUPS-get-classes</CODE>
  operations have been upgraded to support limited filtering based upon
  the <CODE>printer-type</CODE>, <CODE>printer-location</CODE>, <CODE>
 printer-info</CODE>, and <CODE>printer-make-and-model</CODE> attributes.</P>
 <P>The <CODE>CUPS-add-printer</CODE> operation now supports the <CODE>
 ppd-name</CODE> attribute to specify a locally-available PPD file rather
  than sending the PPD file from the client with the request.</P>
 <P>Further information on the CUPS implementation of IPP can be found in
  CUPS-IPP-1.2.</P>
 <H1 TYPE="A" VALUE="1"><A NAME="5">A Glossary</A></H1>
 <H2><A NAME="5_1">A.1 Terms</A></H2>
 <DL>
 <DT>C</DT>
 <DD>A computer language.</DD>
 <DT>parallel</DT>
 <DD>Sending or receiving data more than 1 bit at a time.</DD>
 <DT>pipe</DT>
 <DD>A one-way communications channel between two programs.</DD>
 <DT>serial</DT>
 <DD>Sending or receiving data 1 bit at a time.</DD>
 <DT>socket</DT>
 <DD>A two-way network communications channel.</DD>
 </DL>
 <H2><A NAME="5_2">A.2 Acronyms</A></H2>
 <DL>
 <DT>ASCII</DT>
 <DD>American Standard Code for Information Interchange</DD>
 <DT>CUPS</DT>
 <DD>Common UNIX Printing System</DD>
 <DT>ESC/P</DT>
 <DD>EPSON Standard Code for Printers</DD>
 <DT>FTP</DT>
 <DD>File Transfer Protocol</DD>
 <DT>HP-GL</DT>
 <DD>Hewlett-Packard Graphics Language</DD>
 <DT>HP-PCL</DT>
 <DD>Hewlett-Packard Page Control Language</DD>
 <DT>HP-PJL</DT>
 <DD>Hewlett-Packard Printer Job Language</DD>
 <DT>IETF</DT>
 <DD>Internet Engineering Task Force</DD>
 <DT>IPP</DT>
 <DD>Internet Printing Protocol</DD>
 <DT>ISO</DT>
 <DD>International Standards Organization</DD>
 <DT>LPD</DT>
 <DD>Line Printer Daemon</DD>
 <DT>MIME</DT>
 <DD>Multimedia Internet Mail Exchange</DD>
 <DT>PPD</DT>
 <DD>PostScript Printer Description</DD>
 <DT>SMB</DT>
 <DD>Server Message Block</DD>
 <DT>TFTP</DT>
 <DD>Trivial File Transfer Protocol</DD>
 </DL>
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	<H1>CUPS Software Version Description</H1></A><BR>
	CUPS-SVD-1.2<BR>
	Easy Software Products<BR>
	Copyright 1997-2003, All Rights Reserved<BR>
	</CENTER>
	<HR>
	<H1 ALIGN="CENTER"><A NAME="CONTENTS">Table of Contents</A></H1>
	<BR>
	<BR><B><A HREF="#1">1 Scope</A></B>
	<UL>
	<LI><A HREF="#1_1">1.1 Identification</A></LI>
	<LI><A HREF="#1_2">1.2 System Overview</A></LI>
	<LI><A HREF="#1_3">1.3 Document Overview</A></LI>
	</UL>
	<B><A HREF="#2">2 References</A></B>
	<UL>
	<LI><A HREF="#2_1">2.1 CUPS Documentation</A></LI>
	<LI><A HREF="#2_2">2.2 Other Documents</A></LI>
	</UL>
	<B><A HREF="#3">3 Additions</A></B>
	<UL>
	<LI><A HREF="#3_1">3.1 Filters</A></LI>
	<UL>
	<LI><A HREF="#3_1_1">3.1.1 imagetoraster, imagetops</A></LI>
	<LI><A HREF="#3_1_2">3.1.2 pdftops</A></LI>
	<LI><A HREF="#3_1_3">3.1.3 pstoraster</A></LI>
	<LI><A HREF="#3_1_4">3.1.4 rastertoepson</A></LI>
	</UL>
	<LI><A HREF="#3_2">3.2 User-Defined Printers and Options</A></LI>
	<LI><A HREF="#3_3">3.3 Daemons</A></LI>
	<UL>
	<LI><A HREF="#3_3_1">3.3.1 cups-lpd</A></LI>
	<LI><A HREF="#3_3_2">3.3.2 cups-polld</A></LI>
	</UL>
	<LI><A HREF="#3_4">3.4 Commands</A></LI>
	<UL>
	<LI><A HREF="#3_4_1">3.4.1 lpoptions</A></LI>
	<LI><A HREF="#3_4_2">3.4.2 lpmove</A></LI>
	<LI><A HREF="#3_4_3">3.4.3 lpinfo</A></LI>
	</UL>
	<LI><A HREF="#3_5">3.5 IPP Implementation</A></LI>
	</UL>
	<B><A HREF="#4">4 Changes</A></B>
	<UL>
	<LI><A HREF="#4_1">4.1 Directory Structure</A></LI>
	<LI><A HREF="#4_2">4.2 IPP Implementation</A></LI>
	</UL>
	<B><A HREF="#5">A Glossary</A></B>
	<UL>
	<LI><A HREF="#5_1">A.1 Terms</A></LI>
	<LI><A HREF="#5_2">A.2 Acronyms</A></LI>
	</UL>
	<HR>
	<H1><A NAME="1">1 Scope</A></H1>
	<H2><A NAME="1_1">1.1 Identification</A></H2>
	This software version description document provides release information
	for the Common UNIX Printing System ("CUPS") Version 1.1.
	<H2><A NAME="1_2">1.2 System Overview</A></H2>
	<P>CUPS provides a portable printing layer for UNIX®-based operating
	systems. It has been developed by<A HREF="http://www.easysw.com"> Easy
	Software Products</A> to promote a standard printing solution for all
	UNIX vendors and users. CUPS provides the System V and Berkeley
	command-line interfaces.</P>
	<P>CUPS uses the Internet Printing Protocol ("IPP") as the basis for
	managing print jobs and queues. The Line Printer Daemon ("LPD") Server
	Message Block ("SMB"), and AppSocket (a.k.a. JetDirect) protocols are
	also supported with reduced functionality. CUPS adds network printer
	browsing and PostScript Printer Description ("PPD") based printing
	options to support real-world printing under UNIX.</P>
	<P>CUPS also includes a customized version of GNU Ghostscript (currently
	based off GNU Ghostscript 5.50) and an image file RIP that are used to
	support non-PostScript printers. Sample drivers for HP and EPSON
	printers are included that use these filters.</P>
	<H2><A NAME="1_3">1.3 Document Overview</A></H2>
	<P>This software version description document is organized into the
	following sections:</P>
	<UL>
	<LI><A HREF="#1">1 - Scope</A></LI>
	<LI><A HREF="#2">2 - References</A></LI>
	<LI><A HREF="#3">3 - Additions</A></LI>
	<LI><A HREF="#4">4 - Changes</A></LI>
	<LI><A HREF="#5">A - Glossary</A></LI>
	</UL>
	<H1><A NAME="2">2 References</A></H1>
	<H2><A NAME="2_1">2.1 CUPS Documentation</A></H2>
	<P>The following CUPS documentation is referenced by this document:</P>
	<UL>
	<LI>CUPS-CMP-1.2: CUPS Configuration Management Plan</LI>
	<LI>CUPS-IDD-1.2: CUPS System Interface Design Description</LI>
	<LI>CUPS-IPP-1.2: CUPS Implementation of IPP</LI>
	<LI>CUPS-SAM-1.2.x: CUPS Software Administrators Manual</LI>
	<LI>CUPS-SDD-1.2: CUPS Software Design Description</LI>
	<LI>CUPS-SPM-1.2.x: CUPS Software Programming Manual</LI>
	<LI>CUPS-SSR-1.2: CUPS Software Security Report</LI>
	<LI>CUPS-STP-1.2: CUPS Software Test Plan</LI>
	<LI>CUPS-SUM-1.2.x: CUPS Software Users Manual</LI>
	<LI>CUPS-SVD-1.2: CUPS Software Version Description</LI>
	</UL>
	<H2><A NAME="2_2">2.2 Other Documents</A></H2>
	<P>The following non-CUPS documents are referenced by this document:</P>
	<UL>
	<LI><A HREF="http://partners.adobe.com/asn/developer/PDFS/TN/5003.PPD_Spec_v4.3.pdf">
	Adobe PostScript Printer Description File Format Specification, Version
	4.3.</A></LI>
	<LI><A HREF="http://partners.adobe.com/asn/developer/PDFS/TN/PLRM.pdf">
	Adobe PostScript Language Reference, Third Edition.</A></LI>
	<LI>IPP: Job and Printer Set Operations</LI>
	<LI>IPP/1.1: Encoding and Transport</LI>
	<LI>IPP/1.1: Implementers Guide</LI>
	<LI>IPP/1.1: Model and Semantics</LI>
	<LI><A HREF="http://www.ietf.org/rfc/rfc1179.txt">RFC 1179, Line Printer
	Daemon Protocol</A></LI>
	<LI><A HREF="http://www.ietf.org/rfc/rfc2567.txt">RFC 2567, Design Goals
	for an Internet Printing Protocol</A></LI>
	<LI><A HREF="http://www.ietf.org/rfc/rfc2568.txt">RFC 2568, Rationale
	for the Structure of the Model and Protocol for the Internet Printing
	Protocol</A></LI>
	<LI><A HREF="http://www.ietf.org/rfc/rfc2569.txt">RFC 2569, Mapping
	between LPD and IPP Protocols</A></LI>
	<LI><A HREF="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616, Hypertext
	Transfer Protocol -- HTTP/1.1</A></LI>
	<LI><A HREF="http://www.ietf.org/rfc/rfc2617.txt">RFC 2617, HTTP
	Authentication: Basic and Digest Access</A> Authentication</LI>
	</UL>
	<H1><A NAME="3">3 Additions</A></H1>
	<P>CUPS 1.2 includes many new features from the 1.0.x releases.</P>
	<H2><A NAME="3_1">3.1 Filters</A></H2>
	<H3><A NAME="3_1_1">3.1.1 <CODE>imagetoraster</CODE>, <CODE>imagetops</CODE>
	</A></H3>
	<P>The image file filters have been upgraded to support conversion of
	Microsoft Bitmap ("BMP") and Alias PIX files.</P>
	<H3><A NAME="3_1_2">3.1.2 pdftops</A></H3>
	<P>A new pdftops filter has been developed that is based on the
	excellent Xpdf 0.90 software from Derek B. Noonburg. The new filter is
	faster, smaller, and considerably more reliable than the
	Ghostscript-based filter in CUPS 1.0.</P>
	<H3><A NAME="3_1_3">3.1.3 pstoraster</A></H3>
	<P>The <CODE>pstoraster</CODE> filter has been integrated with GNU
	GhostScript 5.50. The new RIP supports most Level 3 PostScript language
	features.</P>
	<H3><A NAME="3_1_4">3.1.4 rastertoepson</A></H3>
	<P>The new <CODE>rastertoepson</CODE> filter supports EPSON printers
	using the ESC/P or ESC/P2 command sets. PPDs are supplied for 9-pin,
	24-pin, Stylus Color, and Stylus Photo printers.</P>
	<H2><A NAME="3_2">3.2 User-Defined Printers and Options</A></H2>
	<P>The new <CODE>lpoptions</CODE> command allows users to configure
	default document options and create additional "instances" of existing
	printers, each with unique options.</P>
	<P>The <CODE>lp</CODE>, <CODE>lpr</CODE>, and <CODE>lpstat</CODE>
	commands have been upgraded to use this option and printer instance
	information automatically.</P>
	<H2><A NAME="3_3">3.3 Daemons</A></H2>
	<P>CUPS 1.2 includes two new daemons that provide enhanced network
	printing support.</P>
	<H3><A NAME="3_3_1">3.3.1 cups-lpd</A></H3>
	<P>The <CODE>cups-lpd</CODE> daemon provides support for clients using
	the Line Printer Daemon protocol.</P>
	<H3><A NAME="3_3_2">3.3.2 cups-polld</A></H3>
	<P>The <CODE>cups-polld</CODE> daemon provides remote polling services
	for the scheduler.</P>
	<H2><A NAME="3_4">3.4 Commands</A></H2>
	<P>CUPS 1.2 includes several new printing commands.</P>
	<H3><A NAME="3_4_1">3.4.1 lpoptions</A></H3>
	<P>The <CODE>lpoptions</CODE> command provides user-defined printers and
	options.</P>
	<H3><A NAME="3_4_2">3.4.2 lpmove</A></H3>
	<P>The <CODE>lpmove</CODE> command moves a print job to a new
	destination.</P>
	<H3><A NAME="3_4_3">3.4.3 lpinfo</A></H3>
	<P>The <CODE>lpinfo</CODE> command lists the available PPD files or
	devices.</P>
	<H2><A NAME="3_5">3.5 IPP Implementation</A></H2>
	<P>CUPS 1.2 adds support for the <CODE>set-job-attributes</CODE>
	extension operation as well as two new CUPS-specific extension
	operations to determine which devices and printer drivers are available
	on the system.</P>
	<P>Further information on the CUPS implementation of IPP can be found in
	CUPS-IPP-1.2.</P>
	<H1><A NAME="4">4 Changes</A></H1>
	<P>CUPS 1.2 includes many changes from the 1.1.x releases.</P>
	<H2><A NAME="4_1">4.1 Directory Structure</A></H2>
	<P>The directory structure in CUPS 1.2 has been modified to conform to
	the Filesystem Hierarchy Standard, 2.2. The following table describes
	the new file locations.
	<CENTER>
	<TABLE BORDER WIDTH="80%"><CAPTION> Table 1: Directory structure changes
	from CUPS 1.1.x to 1.2.x.</CAPTION>
	<TR><TH>Description</TH><TH>CUPS 1.1.x</TH><TH>CUPS 1.2.x</TH></TR>
	<TR><TD>Backends</TD><TD>/var/cups/backend</TD><TD>/usr/lib/cups/backend</TD>
	</TR>
	<TR><TD>CGI programs</TD><TD>/var/cups/cgi-bin</TD><TD>
	/usr/lib/cups/cgi-bin</TD></TR>
	<TR><TD>Configuration files</TD><TD>/var/cups/conf</TD><TD>/etc/cups</TD>
	</TR>
	<TR><TD>Documentation</TD><TD>/usr/share/cups/doc</TD><TD>
	/usr/share/doc/cups</TD></TR>
	<TR><TD>Filter programs</TD><TD>/var/cups/filter</TD><TD>
	/usr/lib/cups/filter</TD></TR>
	<TR><TD>Interface scripts</TD><TD>/var/cups/interfaces</TD><TD>
	/etc/cups/interfaces</TD></TR>
	<TR><TD>Locale data</TD><TD>/usr/lib/locale</TD><TD>/usr/share/locale</TD>
	</TR>
	<TR><TD>Log files</TD><TD>/var/cups/logs</TD><TD>/var/log/cups</TD></TR>
	<TR><TD>PPD files</TD><TD>/var/cups/ppd</TD><TD>/etc/cups/ppd</TD></TR>
	<TR><TD>Request files</TD><TD>/var/cups/requests</TD><TD>/var/spool/cups</TD>
	</TR>
	</TABLE>
	</CENTER>
	</P>
	<H2><A NAME="4_2">4.2 IPP Implementation</A></H2>
	<P>CUPS 1.2 is based on version 1.1 of the Internet Printing Protocol.</P>
	<P>The new scheduler supports the <CODE>create-job</CODE> and <CODE>
	send-document</CODE> operations. In addition, the <CODE>job-sheets</CODE>
	, <CODE>job-sheets-default</CODE>, and <CODE>job-sheets-supported</CODE>
	attributes are now supported for banner pages.</P>
	<P>The <CODE>CUPS-get-printers</CODE> and <CODE>CUPS-get-classes</CODE>
	operations have been upgraded to support limited filtering based upon
	the <CODE>printer-type</CODE>, <CODE>printer-location</CODE>, <CODE>
	printer-info</CODE>, and <CODE>printer-make-and-model</CODE> attributes.</P>
	<P>The <CODE>CUPS-add-printer</CODE> operation now supports the <CODE>
	ppd-name</CODE> attribute to specify a locally-available PPD file rather
	than sending the PPD file from the client with the request.</P>
	<P>Further information on the CUPS implementation of IPP can be found in
	CUPS-IPP-1.2.</P>
	<H1 TYPE="A" VALUE="1"><A NAME="5">A Glossary</A></H1>
	<H2><A NAME="5_1">A.1 Terms</A></H2>
	<DL>
	<DT>C</DT>
	<DD>A computer language.</DD>
	<DT>parallel</DT>
	<DD>Sending or receiving data more than 1 bit at a time.</DD>
	<DT>pipe</DT>
	<DD>A one-way communications channel between two programs.</DD>
	<DT>serial</DT>
	<DD>Sending or receiving data 1 bit at a time.</DD>
	<DT>socket</DT>
	<DD>A two-way network communications channel.</DD>
	</DL>
	<H2><A NAME="5_2">A.2 Acronyms</A></H2>
	<DL>
	<DT>ASCII</DT>
	<DD>American Standard Code for Information Interchange</DD>
	<DT>CUPS</DT>
	<DD>Common UNIX Printing System</DD>
	<DT>ESC/P</DT>
	<DD>EPSON Standard Code for Printers</DD>
	<DT>FTP</DT>
	<DD>File Transfer Protocol</DD>
	<DT>HP-GL</DT>
	<DD>Hewlett-Packard Graphics Language</DD>
	<DT>HP-PCL</DT>
	<DD>Hewlett-Packard Page Control Language</DD>
	<DT>HP-PJL</DT>
	<DD>Hewlett-Packard Printer Job Language</DD>
	<DT>IETF</DT>
	<DD>Internet Engineering Task Force</DD>
	<DT>IPP</DT>
	<DD>Internet Printing Protocol</DD>
	<DT>ISO</DT>
	<DD>International Standards Organization</DD>
	<DT>LPD</DT>
	<DD>Line Printer Daemon</DD>
	<DT>MIME</DT>
	<DD>Multimedia Internet Mail Exchange</DD>
	<DT>PPD</DT>
	<DD>PostScript Printer Description</DD>
	<DT>SMB</DT>
	<DD>Server Message Block</DD>
	<DT>TFTP</DT>
	<DD>Trivial File Transfer Protocol</DD>
	</DL>
	</BODY>
	</HTML>