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authorJelmer Vernooij <jelmer@samba.org>2003-04-17 19:23:06 +0000
committerJelmer Vernooij <jelmer@samba.org>2003-04-17 19:23:06 +0000
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<HTML
+><HEAD
+><TITLE
+>CUPS Printing Support</TITLE
+><META
+NAME="GENERATOR"
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+HREF="samba-howto-collection.html"><LINK
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+TITLE="Advanced Configuration"
+HREF="optional.html"><LINK
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+TITLE="Printing Support"
+HREF="printing.html"><LINK
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+><BODY
+CLASS="CHAPTER"
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+>SAMBA Project Documentation</TH
+></TR
+><TR
+><TD
+WIDTH="10%"
+ALIGN="left"
+VALIGN="bottom"
+><A
+HREF="printing.html"
+ACCESSKEY="P"
+>Prev</A
+></TD
+><TD
+WIDTH="80%"
+ALIGN="center"
+VALIGN="bottom"
+></TD
+><TD
+WIDTH="10%"
+ALIGN="right"
+VALIGN="bottom"
+><A
+HREF="winbind.html"
+ACCESSKEY="N"
+>Next</A
+></TD
+></TR
+></TABLE
+><HR
+ALIGN="LEFT"
+WIDTH="100%"></DIV
+><DIV
+CLASS="CHAPTER"
+><H1
+><A
+NAME="CUPS-PRINTING"
+></A
+>Chapter 14. CUPS Printing Support</H1
+><DIV
+CLASS="TOC"
+><DL
+><DT
+><B
+>Table of Contents</B
+></DT
+><DT
+>14.1. <A
+HREF="cups-printing.html#AEN2035"
+>Introduction</A
+></DT
+><DT
+>14.2. <A
+HREF="cups-printing.html#AEN2042"
+>Configuring <TT
+CLASS="FILENAME"
+>smb.conf</TT
+> for CUPS</A
+></DT
+><DT
+>14.3. <A
+HREF="cups-printing.html#AEN2062"
+>CUPS - RAW Print Through Mode</A
+></DT
+><DT
+>14.4. <A
+HREF="cups-printing.html#AEN2119"
+>CUPS as a network PostScript RIP -- CUPS drivers working on server, Adobe
+PostScript driver with CUPS-PPDs downloaded to clients</A
+></DT
+><DT
+>14.5. <A
+HREF="cups-printing.html#AEN2140"
+>Windows Terminal Servers (WTS) as CUPS clients</A
+></DT
+><DT
+>14.6. <A
+HREF="cups-printing.html#AEN2144"
+>Setting up CUPS for driver download</A
+></DT
+><DT
+>14.7. <A
+HREF="cups-printing.html#AEN2157"
+>Sources of CUPS drivers / PPDs</A
+></DT
+><DT
+>14.8. <A
+HREF="cups-printing.html#AEN2213"
+>The CUPS Filter Chains</A
+></DT
+><DT
+>14.9. <A
+HREF="cups-printing.html#AEN2252"
+>CUPS Print Drivers and Devices</A
+></DT
+><DT
+>14.10. <A
+HREF="cups-printing.html#AEN2329"
+>Limiting the number of pages users can print</A
+></DT
+><DT
+>14.11. <A
+HREF="cups-printing.html#AEN2425"
+>Advanced Postscript Printing from MS Windows</A
+></DT
+><DT
+>14.12. <A
+HREF="cups-printing.html#AEN2440"
+>Auto-Deletion of CUPS spool files</A
+></DT
+></DL
+></DIV
+><DIV
+CLASS="SECT1"
+><H1
+CLASS="SECT1"
+><A
+NAME="AEN2035"
+>14.1. Introduction</A
+></H1
+><P
+>The Common Unix Print System (CUPS) has become very popular, but to many it is
+a very mystical tool. There is a great deal of uncertainty regarding CUPS and how
+it works. The result is seen in a large number of posting on the samba mailing lists
+expressing frustration when MS Windows printers appear not to work with a CUPS
+backr-end.</P
+><P
+>This is a good time to point out how CUPS can be used and what it does. CUPS is more
+than just a print spooling system - it is a complete printer management system that
+complies with HTTP and IPP protocols. It can be managed remotely via a web browser
+and it can print using http and ipp protocols.</P
+><P
+>CUPS allows to creation of RAW printers (ie: NO file format translation) as well as
+SMART printers (ie: CUPS does file format conversion as required for the printer). In
+many ways this gives CUPS similar capabilities to the MS Windows print monitoring
+system. Of course, if you are a CUPS advocate, you would agrue that CUPS is better!
+In any case, let us now move on to explore how one may configure CUPS for interfacing
+with MS Windows print clients via Samba.</P
+><P
+><A
+HREF="http://www.cups.org/"
+TARGET="_top"
+>CUPS</A
+> is a newcomer in the UNIX printing scene,
+which has convinced many people upon first trial already. However, it has quite a few
+new features, which make it different from other, more traditional printing systems.</P
+></DIV
+><DIV
+CLASS="SECT1"
+><H1
+CLASS="SECT1"
+><A
+NAME="AEN2042"
+>14.2. Configuring <TT
+CLASS="FILENAME"
+>smb.conf</TT
+> for CUPS</A
+></H1
+><P
+>Printing with CUPS in the most basic <TT
+CLASS="FILENAME"
+>smb.conf</TT
+>
+setup in Samba-3 only needs two settings: <B
+CLASS="COMMAND"
+>printing = cups</B
+> and
+<B
+CLASS="COMMAND"
+>printcap = cups</B
+>. While CUPS itself doesn't need a printcap
+anymore, the <TT
+CLASS="FILENAME"
+>cupsd.conf</TT
+> configuration file knows two directives
+(example: <B
+CLASS="COMMAND"
+>Printcap /etc/printcap</B
+> and <B
+CLASS="COMMAND"
+>PrintcapFormat
+BSD</B
+>), which control if such a file should be created for the
+convenience of third party applications. Make sure it is set! For details see
+<B
+CLASS="COMMAND"
+>man cupsd.conf</B
+> and other CUPS-related documentation.</P
+><P
+>If SAMBA is compiled against libcups, then <B
+CLASS="COMMAND"
+>printcap = cups</B
+> uses the
+CUPS API to list printers, submit jobs, etc. Otherwise it maps to the System V commands
+with an additional <VAR
+CLASS="PARAMETER"
+>-oraw</VAR
+> option for printing. On a Linux system,
+you can use the <B
+CLASS="COMMAND"
+>ldd</B
+> command to find out details (ldd may not be
+present on other OS platforms, or its function may be embodied by a different command):</P
+><P
+><PRE
+CLASS="PROGRAMLISTING"
+>transmeta:/home/kurt # ldd `which smbd`
+ libssl.so.0.9.6 =&#62; /usr/lib/libssl.so.0.9.6 (0x4002d000)
+ libcrypto.so.0.9.6 =&#62; /usr/lib/libcrypto.so.0.9.6 (0x4005a000)
+ libcups.so.2 =&#62; /usr/lib/libcups.so.2 (0x40123000)
+ libdl.so.2 =&#62; /lib/libdl.so.2 (0x401e8000)
+ libnsl.so.1 =&#62; /lib/libnsl.so.1 (0x401ec000)
+ libpam.so.0 =&#62; /lib/libpam.so.0 (0x40202000)
+ libc.so.6 =&#62; /lib/libc.so.6 (0x4020b000)
+ /lib/ld-linux.so.2 =&#62; /lib/ld-linux.so.2 (0x40000000)</PRE
+></P
+><P
+>The line "libcups.so.2 =&#62; /usr/lib/libcups.so.2
+(0x40123000)" shows there is CUPS support compiled into this version of
+Samba. If this is the case, and <B
+CLASS="COMMAND"
+>printing = cups</B
+> is set, then any
+otherwise manually set print command in <TT
+CLASS="FILENAME"
+>smb.conf</TT
+> is ignored.</P
+></DIV
+><DIV
+CLASS="SECT1"
+><H1
+CLASS="SECT1"
+><A
+NAME="AEN2062"
+>14.3. CUPS - RAW Print Through Mode</A
+></H1
+><DIV
+CLASS="NOTE"
+><P
+></P
+><TABLE
+CLASS="NOTE"
+WIDTH="100%"
+BORDER="0"
+><TR
+><TD
+WIDTH="25"
+ALIGN="CENTER"
+VALIGN="TOP"
+><IMG
+SRC="/usr/share/sgml/docbook/stylesheet/dsssl/modular/images/note.gif"
+HSPACE="5"
+ALT="Note"></TD
+><TD
+ALIGN="LEFT"
+VALIGN="TOP"
+><P
+>When used in raw print through mode is will be necessary to use the printer
+vendor's drivers in each Windows client PC.</P
+></TD
+></TR
+></TABLE
+></DIV
+><P
+>When CUPS printers are configured for RAW print-through mode operation it is the
+responsibility of the Samba client to fully render the print job (file) in a format
+that is suitable for direct delivery to the printer. In this case CUPS will NOT
+do any print file format conversion work.</P
+><P
+>The CUPS files that need to be correctly set for RAW mode printers to work are:
+
+<P
+></P
+><UL
+><LI
+><P
+><TT
+CLASS="FILENAME"
+>/etc/cups/mime.types</TT
+></P
+></LI
+><LI
+><P
+><TT
+CLASS="FILENAME"
+>/etc/cups/mime.convs</TT
+></P
+></LI
+></UL
+>
+
+Both contain entries that must be uncommented to allow <SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>RAW</I
+></SPAN
+> mode
+operation.</P
+><P
+>Firstly, to enable CUPS based printing from Samba the following options must be
+enabled in your <TT
+CLASS="FILENAME"
+>smb.conf</TT
+> file [globals] section:
+
+<P
+></P
+><UL
+><LI
+><P
+>printing = CUPS</P
+></LI
+><LI
+><P
+>printcap = CUPS</P
+></LI
+></UL
+>
+
+When these parameters are specified the print directives in <TT
+CLASS="FILENAME"
+>smb.conf</TT
+> (as well as in
+samba itself) will be ignored because samba will directly interface with CUPS through
+it's application program interface (API) - so long as Samba has been compiled with
+CUPS library (libcups) support. If samba has NOT been compiled with CUPS support then
+printing will use the System V AT&#38;T command set with the <SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>-oraw</I
+></SPAN
+>
+option automatically passing through.</P
+><P
+>Cupsomatic (an enhanced printing utility that is part of some CUPS implementations)
+on the Samba/CUPS server does *not* add any features if a file is really
+printed "raw". However, if you have loaded the driver for the Windows client from
+the CUPS server, using the "cupsaddsmb" utility, and if this driver is one using
+a "Foomatic" PPD, the PJL header in question is already added on the Windows client,
+at the time when the driver initially generated the PostScript data and CUPS in true
+"-oraw" manner doesn't remove this PJL header and passes the file "as is" to its
+printer communication backend.</P
+><DIV
+CLASS="NOTE"
+><P
+></P
+><TABLE
+CLASS="NOTE"
+WIDTH="100%"
+BORDER="0"
+><TR
+><TD
+WIDTH="25"
+ALIGN="CENTER"
+VALIGN="TOP"
+><IMG
+SRC="/usr/share/sgml/docbook/stylesheet/dsssl/modular/images/note.gif"
+HSPACE="5"
+ALT="Note"></TD
+><TD
+ALIGN="LEFT"
+VALIGN="TOP"
+><P
+>NOTE: editing in the "mime.convs" and the "mime.types" file does not *enforce*
+"raw" printing, it only *allows* it.</P
+></TD
+></TR
+></TABLE
+></DIV
+><P
+>Print files that arrive from MS Windows printing are "auto-typed" by CUPS. This aids
+the process of determining proper treatment while in the print queue system.
+
+<P
+></P
+><UL
+><LI
+><P
+> Files generated by PCL drivers and directed at PCK printers get auto-typed as
+ <TT
+CLASS="FILENAME"
+>application/octet-stream</TT
+>. Unknown file format types also
+ get auto-typed with this tag.
+ </P
+></LI
+><LI
+><P
+> Files generated by a Postscript driver and directed at a Postscript printer
+ are auto-typed depending on the auto-detected most suitable MIME type as:
+
+ <P
+></P
+><UL
+><LI
+><P
+>* application/postscript</P
+></LI
+><LI
+><P
+>* application/vnd.cups-postscript</P
+></LI
+></UL
+>
+ </P
+></LI
+></UL
+></P
+><P
+>"application/postscript" first goes thru the "pstops" filter (where the page counting
+and accounting takes place). The outcome will be of MIME type
+"application/vnd.cups-postscript". The pstopsfilter reads and uses information from
+the PPD and inserts user-provided options into the PostScript file. As a consequence,
+the filtered file could possibly have an unwanted PJL header.</P
+><P
+>"application/postscript" will be all files with a ".ps", ".ai", ".eps" suffix or which
+have as their first character string one of "%!" or "&#62;04&#60;%".</P
+><P
+>"application/vnd.cups-postscript" will files which contain the string
+"LANGUAGE=POSTSCRIPT" (or similar variations with different capitalization) in the
+first 512 bytes, and also contain the "PJL super escape code" in the first 128 bytes
+("&#62;1B&#60;%-12345X"). Very likely, most PostScript files generated on Windows using a CUPS
+or other PPD, will have to be auto-typed as "vnd.cups-postscript". A file produced
+with a "Generic PostScript driver" will just be tagged "application/postscript".</P
+><P
+>Once the file is in "application/vnd.cups-postscript" format, either "pstoraster"
+or "cupsomatic" will take over (depending on the printer configuration, as
+determined by the PPD in use).</P
+><DIV
+CLASS="NOTE"
+><P
+></P
+><TABLE
+CLASS="NOTE"
+WIDTH="100%"
+BORDER="0"
+><TR
+><TD
+WIDTH="25"
+ALIGN="CENTER"
+VALIGN="TOP"
+><IMG
+SRC="/usr/share/sgml/docbook/stylesheet/dsssl/modular/images/note.gif"
+HSPACE="5"
+ALT="Note"></TD
+><TD
+ALIGN="LEFT"
+VALIGN="TOP"
+><P
+>A printer queue with *no* PPD associated to it is a "raw" printer and all files
+will go directly there as received by the spooler. The exeptions are file types
+"application/octet-stream" which need "passthrough feature" enabled.
+"Raw" queues don't do any filtering at all, they hand the file directly to the
+CUPS backend. This backend is responsible for the sending of the data to the device
+(as in the "device URI" notation as lpd://, socket://, smb://, ipp://, http://,
+parallel:/, serial:/, usb:/ etc.)</P
+></TD
+></TR
+></TABLE
+></DIV
+><DIV
+CLASS="NOTE"
+><P
+></P
+><TABLE
+CLASS="NOTE"
+WIDTH="100%"
+BORDER="0"
+><TR
+><TD
+WIDTH="25"
+ALIGN="CENTER"
+VALIGN="TOP"
+><IMG
+SRC="/usr/share/sgml/docbook/stylesheet/dsssl/modular/images/note.gif"
+HSPACE="5"
+ALT="Note"></TD
+><TD
+ALIGN="LEFT"
+VALIGN="TOP"
+><P
+>"cupsomatic"/Foomatic are *not* native CUPS drivers and they don't ship with CUPS.
+They are a Third Party add-on, developed at Linuxprinting.org. As such, they are
+a brilliant hack to make all models (driven by Ghostscript drivers/filters in
+traditional spoolers) also work via CUPS, with the same (good or bad!) quality
+as in these other spoolers. "cupsomatic" is only a vehicle to execute a ghostscript
+commandline at that stage in the CUPS filtering chain, where "normally" the native
+CUPS "pstoraster" filter would kick in. cupsomatic by-passes pstoraster, "kidnaps"
+the printfile from CUPS away and re-directs it to go through Ghostscipt. CUPS accepts this,
+because the associated CUPS-O-Matic-/Foomatic-PPD specifies:</P
+><PRE
+CLASS="PROGRAMLISTING"
+> *cupsFilter: "application/vnd.cups-postscript 0 cupsomatic"</PRE
+><P
+>This line persuades CUPS to hand the file to cupsomatic, once it has successfully
+converted it to the MIME type "application/vnd.cups-postscript". This conversion will not
+happen for Jobs arriving from Windows which are auto-typed "application/octet-stream",
+with the according changes in "/etc/cups/mime.types" in place.</P
+></TD
+></TR
+></TABLE
+></DIV
+><P
+>CUPS is widely configurable and flexible, even regarding its filtering mechanism.
+Another workaround in some situations would be to have
+in "/etc/cups/mime.types" entries as follows:</P
+><PRE
+CLASS="PROGRAMLISTING"
+> application/postscript application/vnd.cups-raw 0 -
+ application/vnd.cups-postscript application/vnd.cups-raw 0 -</PRE
+><P
+>This would prevent all Postscript files from being filtered (rather, they will go
+thru the virtual "nullfilter" denoted with "-"). This could only be useful for
+PS printers. If you want to print PS code on non-PS printers an entry as follows
+could be useful:</P
+><PRE
+CLASS="PROGRAMLISTING"
+> */* application/vnd.cups-raw 0 -</PRE
+><P
+>and would effectively send *all* files to the backend without further processing.</P
+><P
+>Lastly, you could have the following entry:</P
+><PRE
+CLASS="PROGRAMLISTING"
+> application/vnd.cups-postscript application/vnd.cups-raw 0 my_PJL_stripping_filter</PRE
+><P
+>You will need to write a "my_PJL_stripping_filter" (could be a shellscript) that
+parses the PostScript and removes the unwanted PJL. This would need to conform to
+CUPS filter design (mainly, receive and pass the parameters printername, job-id,
+username, jobtitle, copies, print options and possibly the filename). It would
+be installed as world executable into "/usr/lib/cups/filters/" and will be called
+by CUPS if it encounters a MIME type "application/vnd.cups-postscript".</P
+><P
+>CUPS can handle "-o job-hold-until=indefinite". This keeps the job in the queue
+"on hold". It will only be printed upon manual release by the printer operator.
+This is a requirement in many "central reproduction departments", where a few
+operators manage the jobs of hundreds of users on some big machine, where no
+user is allowed to have direct access. (The operators often need to load the
+proper paper type before running the 10.000 page job requested by marketing
+for the mailing, etc.).</P
+></DIV
+><DIV
+CLASS="SECT1"
+><H1
+CLASS="SECT1"
+><A
+NAME="AEN2119"
+>14.4. CUPS as a network PostScript RIP -- CUPS drivers working on server, Adobe
+PostScript driver with CUPS-PPDs downloaded to clients</A
+></H1
+><P
+>CUPS is perfectly able to use PPD files (PostScript
+Printer Descriptions). PPDs can control all print device options. They
+are usually provided by the manufacturer -- if you own a PostSript printer,
+that is. PPD files are always a component of PostScript printer drivers on MS
+Windows or Apple Mac OS systems. They are ASCII files containing
+user-selectable print options, mapped to appropriate PostScript, PCL or PJL
+commands for the target printer. Printer driver GUI dialogs translate these
+options "on-the-fly" into buttons and drop-down lists for the user to
+select.</P
+><P
+>CUPS can load, without any conversions, the PPD file from
+any Windows (NT is recommended) PostScript driver and handle the options.
+There is a web browser interface to the print options (select
+http://localhost:631/printers/ and click on one "Configure Printer" button
+to see it), a commandline interface (see <B
+CLASS="COMMAND"
+>man lpoptions</B
+> or
+try if you have <B
+CLASS="COMMAND"
+>lphelp</B
+> on your system) plus some different GUI frontends on Linux
+UNIX, which can present PPD options to the users. PPD options are normally
+meant to become evaluated by the PostScript RIP on the real PostScript
+printer.</P
+><P
+>CUPS doesn't stop at "real" PostScript printers in its
+usage of PPDs. The CUPS developers have extended the PPD concept, to also
+describe available device and driver options for non-PostScript printers
+through CUPS-PPDs.</P
+><P
+>This is logical, as CUPS includes a fully featured
+PostScript interpreter (RIP). This RIP is based on Ghostscript. It can
+process all received PostScript (and additionally many other file formats)
+from clients. All CUPS-PPDs geared to non-PostScript printers contain an
+additional line, starting with the keyword <VAR
+CLASS="PARAMETER"
+>*cupsFilter</VAR
+>.
+This line
+tells the CUPS print system which printer-specific filter to use for the
+interpretation of the accompanying PostScript. Thus CUPS lets all its
+printers appear as PostScript devices to its clients, because it can act as a
+PostScript RIP for those printers, processing the received PostScript code
+into a proper raster print format.</P
+><P
+>CUPS-PPDs can also be used on Windows-Clients, on top of a
+PostScript driver (recommended is the Adobe one).</P
+><P
+>This feature enables CUPS to do a few tricks no other
+spooler can do:</P
+><P
+></P
+><UL
+><LI
+><P
+>act as a networked PostScript RIP (Raster Image Processor), handling
+ printfiles from all client platforms in a uniform way;</P
+></LI
+><LI
+><P
+>act as a central accounting and billing server, as all files are passed
+ through the <B
+CLASS="COMMAND"
+>pstops</B
+> Filter and are therefor logged in
+ the CUPS <TT
+CLASS="FILENAME"
+>page&lowbar;log</TT
+>. - <SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>NOTE: </I
+></SPAN
+>this
+ can not happen with "raw" print jobs, which always remain unfiltered
+ per definition;</P
+></LI
+><LI
+><P
+>enable clients to consolidate on a single PostScript driver, even for
+ many different target printers.</P
+></LI
+></UL
+></DIV
+><DIV
+CLASS="SECT1"
+><H1
+CLASS="SECT1"
+><A
+NAME="AEN2140"
+>14.5. Windows Terminal Servers (WTS) as CUPS clients</A
+></H1
+><P
+>This setup may be of special interest to people
+experiencing major problems in WTS environments. WTS need often a multitude
+of non-PostScript drivers installed to run their clients' variety of
+different printer models. This often imposes the price of much increased
+instability. In many cases, in an attempt to overcome this problem, site
+administrators have resorted to restrict the allowed drivers installed on
+their WTS to one generic PCL- and one PostScript driver. This however
+restricts the clients in the amount of printer options available for them --
+often they can't get out more then simplex prints from one standard paper
+tray, while their devices could do much better, if driven by a different
+driver!</P
+><P
+>Using an Adobe PostScript driver, enabled with a CUPS-PPD,
+seems to be a very elegant way to overcome all these shortcomings. The
+PostScript driver is not known to cause major stability problems on WTS (even
+if used with many different PPDs). The clients will be able to (again) chose
+paper trays, duplex printing and other settings. However, there is a certain
+price for this too: a CUPS server acting as a PostScript RIP for its clients
+requires more CPU and RAM than just to act as a "raw spooling" device. Plus,
+this setup is not yet widely tested, although the first feedbacks look very
+promising...</P
+></DIV
+><DIV
+CLASS="SECT1"
+><H1
+CLASS="SECT1"
+><A
+NAME="AEN2144"
+>14.6. Setting up CUPS for driver download</A
+></H1
+><P
+>The <B
+CLASS="COMMAND"
+>cupsadsmb</B
+> utility (shipped with all current
+CUPS versions) makes the sharing of any (or all) installed CUPS printers very
+easy. Prior to using it, you need the following settings in <TT
+CLASS="FILENAME"
+>smb.conf</TT
+>:</P
+><P
+><PRE
+CLASS="PROGRAMLISTING"
+>[global]
+ load printers = yes
+ printing = cups
+ printcap name = cups
+
+ [printers]
+ comment = All Printers
+ path = /var/spool/samba
+ browseable = no
+ public = yes
+ guest ok = yes
+ writable = no
+ printable = yes
+ printer admin = root
+
+ [print$]
+ comment = Printer Drivers
+ path = /etc/samba/drivers
+ browseable = yes
+ guest ok = no
+ read only = yes
+ write list = root
+ </PRE
+></P
+><P
+>For licensing reasons the necessary files of the Adobe
+Postscript driver can not be distributed with either Samba or CUPS. You need
+to download them yourself from the Adobe website. Once extracted, create a
+<TT
+CLASS="FILENAME"
+>drivers</TT
+> directory in the CUPS data directory (usually
+<TT
+CLASS="FILENAME"
+>/usr/share/cups/</TT
+>). Copy the Adobe files using
+UPPERCASE filenames, to this directory as follows:</P
+><P
+><PRE
+CLASS="PROGRAMLISTING"
+> ADFONTS.MFM
+ ADOBEPS4.DRV
+ ADOBEPS4.HLP
+ ADOBEPS5.DLL
+ ADOBEPSU.DLL
+ ADOBEPSU.HLP
+ DEFPRTR2.PPD
+ ICONLIB.DLL
+ </PRE
+></P
+><P
+>Users of the ESP Print Pro software are able to install
+their "Samba Drivers" package for this purpose with no problem.</P
+></DIV
+><DIV
+CLASS="SECT1"
+><H1
+CLASS="SECT1"
+><A
+NAME="AEN2157"
+>14.7. Sources of CUPS drivers / PPDs</A
+></H1
+><P
+>On the internet you can find now many thousand CUPS-PPD
+files (with their companion filters), in many national languages,
+supporting more than 1.000 non-PostScript models.</P
+><P
+></P
+><UL
+><LI
+><P
+><A
+HREF="http://wwwl.easysw.com/printpro/"
+TARGET="_top"
+>ESP PrintPro
+ (http://wwwl.easysw.com/printpro/)</A
+>
+ (commercial, non-Free) is packaged with more than 3.000 PPDs, ready for
+ successful usage "out of the box" on Linux, IBM-AIX, HP-UX, Sun-Solaris,
+ SGI-IRIX, Compaq Tru64, Digital Unix and some more commercial Unices (it
+ is written by the CUPS developers themselves and its sales help finance
+ the further development of CUPS, as they feed their creators)</P
+></LI
+><LI
+><P
+>the <A
+HREF="http://gimp-print.sourceforge.net/"
+TARGET="_top"
+>Gimp-Print-Project
+ (http://gimp-print.sourceforge.net/)</A
+>
+ (GPL, Free Software) provides around 120 PPDs (supporting nearly 300
+ printers, many driven to photo quality output), to be used alongside the
+ Gimp-Print CUPS filters;</P
+></LI
+><LI
+><P
+><A
+HREF="http://www.turboprint.com/"
+TARGET="_top"
+>TurboPrint
+ (http://www.turboprint.com/)</A
+>
+ (Shareware, non-Freee) supports roughly the same amount of printers in
+ excellent quality;</P
+></LI
+><LI
+><P
+><A
+HREF="http://www-124.ibm.com/developerworks/oss/linux/projects/omni/"
+TARGET="_top"
+>OMNI
+ (http://www-124.ibm.com/developerworks/oss/linux/projects/omni/)</A
+>
+ (LPGL, Free) is a package made by IBM, now containing support for more
+ than 400 printers, stemming from the inheritance of IBM OS/2 KnowHow
+ ported over to Linux (CUPS support is in a Beta-stage at present);</P
+></LI
+><LI
+><P
+><A
+HREF="http://hpinkjet.sourceforge.net/"
+TARGET="_top"
+>HPIJS
+ (http://hpinkjet.sourceforge.net/)</A
+>
+ (BSD-style licnes, Free) supports around 120 of HP's own printers and is
+ also providing excellent print quality now;</P
+></LI
+><LI
+><P
+><A
+HREF="http://www.linuxprinting.org/"
+TARGET="_top"
+>Foomatic/cupsomatic (http://www.linuxprinting.org/)</A
+>
+ (LPGL, Free) from Linuxprinting.org are providing PPDs for practically every
+ Ghostscript filter known to the world, now usable with CUPS.</P
+></LI
+></UL
+><P
+><SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>NOTE: </I
+></SPAN
+>the cupsomatic trick from Linuxprinting.org is
+working different from the other drivers. While the other drivers take the
+generic CUPS raster (produced by CUPS' own pstoraster PostScript RIP) as
+their input, cupsomatic "kidnaps" the PostScript inside CUPS, before
+RIP-ping, deviates it to an external Ghostscript installation (which now
+becomes the RIP) and gives it back to a CUPS backend once Ghostscript is
+finished. -- CUPS versions from 1.1.15 and later will provide their pstoraster
+PostScript RIP function again inside a system-wide Ghostscript
+installation rather than in "their own" pstoraster filter. (This
+CUPS-enabling Ghostscript version may be installed either as a
+patch to GNU or AFPL Ghostscript, or as a complete ESP Ghostscript package).
+However, this will not change the cupsomatic approach of guiding the printjob
+along a different path through the filtering system than the standard CUPS
+way...</P
+><P
+>Once you installed a printer inside CUPS with one of the
+recommended methods (the lpadmin command, the web browser interface or one of
+the available GUI wizards), you can use <B
+CLASS="COMMAND"
+>cupsaddsmb</B
+> to share the
+printer via Samba. <B
+CLASS="COMMAND"
+>cupsaddsmb</B
+> prepares the driver files for
+comfortable client download and installation upon their first contact with
+this printer share.</P
+><DIV
+CLASS="SECT2"
+><H2
+CLASS="SECT2"
+><A
+NAME="AEN2184"
+>14.7.1. <B
+CLASS="COMMAND"
+>cupsaddsmb</B
+></A
+></H2
+><P
+>The <B
+CLASS="COMMAND"
+>cupsaddsmb</B
+> command copies the needed files
+for convenient Windows client installations from the previously prepared CUPS
+data directory to your [print$] share. Additionally, the PPD
+associated with this printer is copied from <TT
+CLASS="FILENAME"
+>/etc/cups/ppd/</TT
+> to
+[print$].</P
+><P
+><PRE
+CLASS="PROGRAMLISTING"
+><SAMP
+CLASS="PROMPT"
+>root# </SAMP
+> <B
+CLASS="COMMAND"
+>cupsaddsmb -U root infotec_IS2027</B
+>
+Password for root required to access localhost via SAMBA: <KBD
+CLASS="USERINPUT"
+>[type in password 'secret']</KBD
+></PRE
+></P
+><P
+>To share all printers and drivers, use the <VAR
+CLASS="PARAMETER"
+>-a</VAR
+>
+parameter instead of a printer name.</P
+><P
+>Probably you want to see what's going on. Use the
+<VAR
+CLASS="PARAMETER"
+>-v</VAR
+> parameter to get a more verbose output:</P
+><P
+>Probably you want to see what's going on. Use the
+<VAR
+CLASS="PARAMETER"
+>-v</VAR
+> parameter to get a more verbose output:</P
+><P
+><PRE
+CLASS="PROGRAMLISTING"
+>Note: The following line shave been wrapped so that information is not lost.
+
+<SAMP
+CLASS="PROMPT"
+>root# </SAMP
+> cupsaddsmb -v -U root infotec_IS2027
+ Password for root required to access localhost via SAMBA:
+ Running command: smbclient //localhost/print\$ -N -U'root%secret' -c 'mkdir W32X86;put
+ /var/spool/cups/tmp/3cd1cc66376c0 W32X86/infotec_IS2027.PPD;put /usr/share/cups/drivers/
+ ADOBEPS5.DLL W32X86/ADOBEPS5.DLL;put /usr/share/cups/drivers/ADOBEPSU.DLLr
+ W32X86/ADOBEPSU.DLL;put /usr/share/cups/drivers/ADOBEPSU.HLP W32X86/ADOBEPSU.HLP'
+ added interface ip=10.160.16.45 bcast=10.160.31.255 nmask=255.255.240.0
+ added interface ip=192.168.182.1 bcast=192.168.182.255 nmask=255.255.255.0
+ added interface ip=172.16.200.1 bcast=172.16.200.255 nmask=255.255.255.0
+ Domain=[TUX-NET] OS=[Unix] Server=[Samba 2.2.3a.200204262025cvs]
+ NT_STATUS_OBJECT_NAME_COLLISION making remote directory \W32X86
+ putting file /var/spool/cups/tmp/3cd1cc66376c0 as \W32X86/infotec_IS2027.PPD (17394.6 kb/s)
+ (average 17395.2 kb/s)
+ putting file /usr/share/cups/drivers/ADOBEPS5.DLL as \W32X86/ADOBEPS5.DLL (10877.4 kb/s)
+ (average 11343.0 kb/s)
+ putting file /usr/share/cups/drivers/ADOBEPSU.DLL as \W32X86/ADOBEPSU.DLL (5095.2 kb/s)
+ (average 9260.4 kb/s)
+ putting file /usr/share/cups/drivers/ADOBEPSU.HLP as \W32X86/ADOBEPSU.HLP (8828.7 kb/s)
+ (average 9247.1 kb/s)
+
+ Running command: smbclient //localhost/print\$ -N -U'root%secret' -c 'mkdir WIN40;put
+ /var/spool/cups/tmp/3cd1cc66376c0 WIN40/infotec_IS2027.PPD;put
+ /usr/share/cups/drivers/ADFONTS.MFM WIN40/ADFONTS.MFM;put
+ /usr/share/cups/drivers/ADOBEPS4.DRV WIN40/ADOBEPS4.DRV;put
+ /usr/share/cups/drivers/ADOBEPS4.HLP WIN40/ADOBEPS4.HLP;put
+ /usr/share/cups/drivers/DEFPRTR2.PPD WIN40/DEFPRTR2.PPD;put
+ /usr/share/cups/drivers/ICONLIB.DLL WIN40/ICONLIB.DLL;put
+ /usr/share/cups/drivers/PSMON.DLL WIN40/PSMON.DLL;'
+ added interface ip=10.160.16.45 bcast=10.160.31.255 nmask=255.255.240.0
+ added interface ip=192.168.182.1 bcast=192.168.182.255 nmask=255.255.255.0
+ added interface ip=172.16.200.1 bcast=172.16.200.255 nmask=255.255.255.0
+ Domain=[TUX-NET] OS=[Unix] Server=[Samba 2.2.3a.200204262025cvs]
+ NT_STATUS_OBJECT_NAME_COLLISION making remote directory \WIN40
+ putting file /var/spool/cups/tmp/3cd1cc66376c0 as \WIN40/infotec_IS2027.PPD (26091.5 kb/s)
+ (average 26092.8 kb/s)
+ putting file /usr/share/cups/drivers/ADFONTS.MFM as \WIN40/ADFONTS.MFM (11241.6 kb/s)
+ (average 11812.9 kb/s)
+ putting file /usr/share/cups/drivers/ADOBEPS4.DRV as \WIN40/ADOBEPS4.DRV (16640.6 kb/s)
+ (average 14679.3 kb/s)
+ putting file /usr/share/cups/drivers/ADOBEPS4.HLP as \WIN40/ADOBEPS4.HLP (11285.6 kb/s)
+ (average 14281.5 kb/s)
+ putting file /usr/share/cups/drivers/DEFPRTR2.PPD as \WIN40/DEFPRTR2.PPD (823.5 kb/s)
+ (average 12944.0 kb/s)
+ putting file /usr/share/cups/drivers/ICONLIB.DLL as \WIN40/ICONLIB.DLL (19226.2 kb/s)
+ (average 13169.7 kb/s)
+ putting file /usr/share/cups/drivers/PSMON.DLL as \WIN40/PSMON.DLL (18666.1 kb/s)
+ (average 13266.7 kb/s)
+
+ Running command: rpcclient localhost -N -U'root%secret' -c 'adddriver "Windows NT x86"
+ "infotec_IS2027:ADOBEPS5.DLL:infotec_IS2027.PPD:ADOBEPSU.DLL:ADOBEPSU.HLP:NULL:RAW:NULL"'
+ cmd = adddriver "Windows NT x86" "infotec_IS2027:ADOBEPS5.DLL:infotec_IS2027.PPD:ADOBEPSU.DLL:
+ ADOBEPSU.HLP:NULL:RAW:NULL"
+ Printer Driver infotec_IS2027 successfully installed.
+
+ Running command: rpcclient localhost -N -U'root%secret' -c 'adddriver "Windows 4.0"
+ "infotec_IS2027:ADOBEPS4.DRV:infotec_IS2027.PPD:NULL:ADOBEPS4.HLP:PSMON.DLL:RAW:
+ ADFONTS.MFM,DEFPRTR2.PPD,ICONLIB.DLL"'
+ cmd = adddriver "Windows 4.0" "infotec_IS2027:ADOBEPS4.DRV:infotec_IS2027.PPD:NULL:
+ ADOBEPS4.HLP:PSMON.DLL:RAW:ADFONTS.MFM,DEFPRTR2.PPD,ICONLIB.DLL"
+ Printer Driver infotec_IS2027 successfully installed.
+
+ Running command: rpcclient localhost -N -U'root%secret'
+ -c 'setdriver infotec_IS2027 infotec_IS2027'
+ cmd = setdriver infotec_IS2027 infotec_IS2027
+ Succesfully set infotec_IS2027 to driver infotec_IS2027.
+
+ <SAMP
+CLASS="PROMPT"
+>root# </SAMP
+></PRE
+></P
+><P
+>If you look closely, you'll discover your root password was transfered unencrypted over
+the wire, so beware! Also, if you look further her, you'll discover error messages like
+<CODE
+CLASS="CONSTANT"
+>NT_STATUS_OBJECT_NAME_COLLISION</CODE
+> in between. They occur, because
+the directories <TT
+CLASS="FILENAME"
+>WIN40</TT
+> and <TT
+CLASS="FILENAME"
+>W32X86</TT
+> already
+existed in the [print$] driver download share (from a previous driver
+installation). They are harmless here.</P
+><P
+>Now your printer is prepared for the clients to use. From
+a client, browse to the CUPS/Samba server, open the "Printers"
+share, right-click on this printer and select "Install..." or
+"Connect..." (depending on the Windows version you use). Now their
+should be a new printer in your client's local "Printers" folder,
+named (in my case) "infotec_IS2027 on kdebitshop"</P
+><P
+><SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>NOTE: </I
+></SPAN
+>
+<B
+CLASS="COMMAND"
+>cupsaddsmb</B
+> will only reliably work i
+with CUPS version 1.1.15 or higher
+and Samba from 2.2.4. If it doesn't work, or if the automatic printer
+driver download to the clients doesn't succeed, you can still manually
+install the CUPS printer PPD on top of the Adobe PostScript driver on
+clients and then point the client's printer queue to the Samba printer
+share for connection, should you desire to use the CUPS networked
+PostScript RIP functions.</P
+></DIV
+></DIV
+><DIV
+CLASS="SECT1"
+><H1
+CLASS="SECT1"
+><A
+NAME="AEN2213"
+>14.8. The CUPS Filter Chains</A
+></H1
+><P
+>The following diagrams reveal how CUPS handles print jobs.</P
+><PRE
+CLASS="PROGRAMLISTING"
+>#########################################################################
+#
+# CUPS in and of itself has this (general) filter chain (CAPITAL
+# letters are FILE-FORMATS or MIME types, other are filters (this is
+# true for pre-1.1.15 of pre-4.3 versions of CUPS and ESP PrintPro):
+#
+# <VAR
+CLASS="REPLACEABLE"
+>SOMETHNG</VAR
+>-FILEFORMAT
+# |
+# |
+# V
+# <VAR
+CLASS="REPLACEABLE"
+>something</VAR
+>tops
+# |
+# |
+# V
+# APPLICATION/POSTSCRIPT
+# |
+# |
+# V
+# pstops
+# |
+# |
+# V
+# APPLICATION/VND.CUPS-POSTSCRIPT
+# |
+# |
+# V
+# pstoraster # as shipped with CUPS, independent from any Ghostscipt
+# | # installation on the system
+# | (= "postscipt interpreter")
+# |
+# V
+# APPLICATION/VND.CUPS-RASTER
+# |
+# |
+# V
+# rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+> (f.e. Gimp-Print filters may be plugged in here)
+# | (= "raster driver")
+# |
+# V
+# SOMETHING-DEVICE-SPECIFIC
+# |
+# |
+# V
+# backend
+#
+#
+# ESP PrintPro has some enhanced "rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+>" filters as compared to
+# CUPS, and also a somewhat improved "pstoraster" filter.
+#
+# NOTE: Gimp-Print and some other 3rd-Party-Filters (like TurboPrint) to
+# CUPS and ESP PrintPro plug-in where rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+> is noted.
+#
+#########################################################################</PRE
+><PRE
+CLASS="PROGRAMLISTING"
+>#########################################################################
+#
+# This is how "cupsomatic" comes into play:
+# =========================================
+#
+# <VAR
+CLASS="REPLACEABLE"
+>SOMETHNG</VAR
+>-FILEFORMAT
+# |
+# |
+# V
+# <VAR
+CLASS="REPLACEABLE"
+>something</VAR
+>tops
+# |
+# |
+# V
+# APPLICATION/POSTSCRIPT
+# |
+# |
+# V
+# pstops
+# |
+# |
+# V
+# APPLICATION/VND.CUPS-POSTSCRIPT ----------------+
+# | |
+# | V
+# V cupsomatic
+# pstoraster (constructs complicated
+# | (= "postscipt interpreter") Ghostscript commandline
+# | to let the file be
+# V processed by a
+# APPLICATION/VND.CUPS-RASTER "-sDEVICE=<VAR
+CLASS="REPLACEABLE"
+>s.th.</VAR
+>"
+# | call...)
+# | |
+# V |
+# rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+> V
+# | (= "raster driver") +-------------------------+
+# | | Ghostscript at work.... |
+# V | |
+# SOMETHING-DEVICE-SPECIFIC *-------------------------+
+# | |
+# | |
+# V |
+# backend &#62;------------------------------------+
+# |
+# |
+# V
+# THE PRINTER
+#
+#
+# Note, that cupsomatic "kidnaps" the printfile after the
+# "APPLICATION/VND.CUPS-POSTSCRPT" stage and deviates it through
+# the CUPS-external, systemwide Ghostscript installation, bypassing the
+# "pstoraster" filter (therefor also bypassing the CUPS-raster-drivers
+# "rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+>", and hands the rasterized file directly to the CUPS
+# backend...
+#
+# cupsomatic is not made by the CUPS developers. It is an independent
+# contribution to printing development, made by people from
+# Linuxprinting.org. (see also http://www.cups.org/cups-help.html)
+#
+# NOTE: Gimp-Print and some other 3rd-Party-Filters (like TurboPrint) to
+# CUPS and ESP PrintPro plug-in where rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+> is noted.
+#
+#########################################################################</PRE
+><PRE
+CLASS="PROGRAMLISTING"
+>#########################################################################
+#
+# And this is how it works for ESP PrintPro from 4.3:
+# ===================================================
+#
+# <VAR
+CLASS="REPLACEABLE"
+>SOMETHNG</VAR
+>-FILEFORMAT
+# |
+# |
+# V
+# <VAR
+CLASS="REPLACEABLE"
+>something</VAR
+>tops
+# |
+# |
+# V
+# APPLICATION/POSTSCRIPT
+# |
+# |
+# V
+# pstops
+# |
+# |
+# V
+# APPLICATION/VND.CUPS-POSTSCRIPT
+# |
+# |
+# V
+# gsrip
+# | (= "postscipt interpreter")
+# |
+# V
+# APPLICATION/VND.CUPS-RASTER
+# |
+# |
+# V
+# rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+> (f.e. Gimp-Print filters may be plugged in here)
+# | (= "raster driver")
+# |
+# V
+# SOMETHING-DEVICE-SPECIFIC
+# |
+# |
+# V
+# backend
+#
+# NOTE: Gimp-Print and some other 3rd-Party-Filters (like TurboPrint) to
+# CUPS and ESP PrintPro plug-in where rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+> is noted.
+#
+#########################################################################</PRE
+><PRE
+CLASS="PROGRAMLISTING"
+>#########################################################################
+#
+# This is how "cupsomatic" would come into play with ESP PrintPro:
+# ================================================================
+#
+#
+# <VAR
+CLASS="REPLACEABLE"
+>SOMETHNG</VAR
+>-FILEFORMAT
+# |
+# |
+# V
+# <VAR
+CLASS="REPLACEABLE"
+>something</VAR
+>tops
+# |
+# |
+# V
+# APPLICATION/POSTSCRIPT
+# |
+# |
+# V
+# pstops
+# |
+# |
+# V
+# APPLICATION/VND.CUPS-POSTSCRIPT ----------------+
+# | |
+# | V
+# V cupsomatic
+# gsrip (constructs complicated
+# | (= "postscipt interpreter") Ghostscript commandline
+# | to let the file be
+# V processed by a
+# APPLICATION/VND.CUPS-RASTER "-sDEVICE=<VAR
+CLASS="REPLACEABLE"
+>s.th.</VAR
+>"
+# | call...)
+# | |
+# V |
+# rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+> V
+# | (= "raster driver") +-------------------------+
+# | | Ghostscript at work.... |
+# V | |
+# SOMETHING-DEVICE-SPECIFIC *-------------------------+
+# | |
+# | |
+# V |
+# backend &#62;------------------------------------+
+# |
+# |
+# V
+# THE PRINTER
+#
+# NOTE: Gimp-Print and some other 3rd-Party-Filters (like TurboPrint) to
+# CUPS and ESP PrintPro plug-in where rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+> is noted.
+#
+#########################################################################</PRE
+><PRE
+CLASS="PROGRAMLISTING"
+>#########################################################################
+#
+# And this is how it works for CUPS from 1.1.15:
+# ==============================================
+#
+# <VAR
+CLASS="REPLACEABLE"
+>SOMETHNG</VAR
+>-FILEFORMAT
+# |
+# |
+# V
+# <VAR
+CLASS="REPLACEABLE"
+>something</VAR
+>tops
+# |
+# |
+# V
+# APPLICATION/POSTSCRIPT
+# |
+# |
+# V
+# pstops
+# |
+# |
+# V
+# APPLICATION/VND.CUPS-POSTSCRIPT-----+
+# |
+# +------------------v------------------------------+
+# | Ghostscript |
+# | at work... |
+# | (with |
+# | "-sDEVICE=cups") |
+# | |
+# | (= "postscipt interpreter") |
+# | |
+# +------------------v------------------------------+
+# |
+# |
+# APPLICATION/VND.CUPS-RASTER &#62;-------+
+# |
+# |
+# V
+# rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+>
+# | (= "raster driver")
+# |
+# V
+# SOMETHING-DEVICE-SPECIFIC
+# |
+# |
+# V
+# backend
+#
+#
+# NOTE: since version 1.1.15 CUPS "outsourced" the pstoraster process to
+# Ghostscript. GNU Ghostscript needs to be patched to handle the
+# CUPS requirement; ESP Ghostscript has this builtin. In any case,
+# "gs -h" needs to show up a "cups" device. pstoraster is now a
+# calling an appropriate "gs -sDEVICE=cups..." commandline to do
+# the job. It will output "application/vnd.cup-raster", which will
+# be finally processed by a CUPS raster driver "rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+>"
+# Note the difference to "cupsomatic", which will *not* output
+# CUPS-raster, but a final version of the printfile, ready to be
+# sent to the printer. cupsomatic also doesn't use the "cups"
+# devicemode in Ghostscript, but one of the classical devicemodes....
+#
+# NOTE: Gimp-Print and some other 3rd-Party-Filters (like TurboPrint) to
+# CUPS and ESP PrintPro plug-in where rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+> is noted.
+#
+#########################################################################</PRE
+><PRE
+CLASS="PROGRAMLISTING"
+>#########################################################################
+#
+# And this is how it works for CUPS from 1.1.15, with cupsomatic included:
+# ========================================================================
+#
+# <VAR
+CLASS="REPLACEABLE"
+>SOMETHNG</VAR
+>-FILEFORMAT
+# |
+# |
+# V
+# <VAR
+CLASS="REPLACEABLE"
+>something</VAR
+>tops
+# |
+# |
+# V
+# APPLICATION/POSTSCRIPT
+# |
+# |
+# V
+# pstops
+# |
+# |
+# V
+# APPLICATION/VND.CUPS-POSTSCRIPT-----+
+# |
+# +------------------v------------------------------+
+# | Ghostscript . Ghostscript at work.... |
+# | at work... . (with "-sDEVICE= |
+# | (with . <VAR
+CLASS="REPLACEABLE"
+>s.th.</VAR
+>" |
+# | "-sDEVICE=cups") . |
+# | . |
+# | (CUPS standard) . (cupsomatic) |
+# | . |
+# | (= "postscript interpreter") |
+# | . |
+# +------------------v--------------v---------------+
+# | |
+# | |
+# APPLICATION/VND.CUPS-RASTER &#62;-------+ |
+# | |
+# | |
+# V |
+# rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+> |
+# | (= "raster driver") |
+# | |
+# V |
+# SOMETHING-DEVICE-SPECIFIC &#62;------------------------+
+# |
+# |
+# V
+# backend
+#
+#
+# NOTE: Gimp-Print and some other 3rd-Party-Filters (like TurboPrint) to
+# CUPS and ESP PrintPro plug-in where rasterto<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+> is noted.
+#
+##########################################################################</PRE
+></DIV
+><DIV
+CLASS="SECT1"
+><H1
+CLASS="SECT1"
+><A
+NAME="AEN2252"
+>14.9. CUPS Print Drivers and Devices</A
+></H1
+><P
+>CUPS ships with good support for HP LaserJet type printers. You can install
+the driver as follows:
+
+<P
+></P
+><UL
+><LI
+><P
+> lpadmin -p laserjet4plus -v parallel:/dev/lp0 -E -m laserjet.ppd
+ </P
+></LI
+></UL
+>
+
+(The "-m" switch will retrieve the "laserjet.ppd" from the standard repository
+for not-yet-installed-PPDs, which CUPS typically stores in
+<TT
+CLASS="FILENAME"
+>/usr/share/cups/model</TT
+>. Alternatively, you may use
+"-P /absolute/filesystem/path/to/where/there/is/PPD/your.ppd").</P
+><DIV
+CLASS="SECT2"
+><H2
+CLASS="SECT2"
+><A
+NAME="AEN2259"
+>14.9.1. Further printing steps</A
+></H2
+><P
+>Always also consult the database on linuxprinting.org for all recommendations
+about which driver is best used for each printer:</P
+><P
+><A
+HREF="http://www.linuxprinting.org/printer_list.cgi"
+TARGET="_top"
+>http://www.linuxprinting.org/printer_list.cgi</A
+></P
+><P
+>There select your model and click on "Show". You'll arrive at a page listing
+all drivers working with your model. There will always be *one*
+<SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>recommended</I
+></SPAN
+> one. Try this one first. In your case
+("HP LaserJet 4 Plus"), you'll arrive here:</P
+><P
+><A
+HREF="http://www.linuxprinting.org/show_printer.cgi?recnum=75104"
+TARGET="_top"
+>http://www.linuxprinting.org/show_printer.cgi?recnum=75104</A
+></P
+><P
+>The recommended driver is "ljet4". It has a link to the page for the ljet4
+driver too:</P
+><P
+><A
+HREF="http://www.linuxprinting.org/show_driver.cgi?driver=ljet4"
+TARGET="_top"
+>http://www.linuxprinting.org/show_driver.cgi?driver=ljet4</A
+></P
+><P
+>On the driver's page, you'll find important and detailed info about how to use
+that driver within the various available spoolers. You can generate a PPD for
+CUPS. The PPD contains all the info about how to use your model and the driver;
+this is, once installed, working transparently for the user -- you'll only
+need to choose resolution, paper size etc. from the web-based menu or from
+the print dialog GUI or from the commandline...</P
+><P
+>On the driver's page, choose to use the "PPD-O-Matic" online PPD generator
+program. Select your model and click "Generate PPD file". When you safe the
+appearing ASCII text file, don't use "cut'n'past" (as it could possiblly corrupt
+line endings and tabs), but use "Save as..." in your browser's menu. Save it
+at "/some/path/on/your/filesystem/somewhere/my-name-for-my-printer.ppd"</P
+><P
+>Then install the printer:</P
+><P
+><PRE
+CLASS="PROGRAMLISTING"
+> "lpadmin -p laserjet4plus -v parallel:/dev/lp0 -E \
+ -P /some/path/on/your/filesystem/somewhere/my-name-for-my-printer.ppd"</PRE
+></P
+><P
+>Note, that for all the "Foomatic-PPDs" from Linuxprinting.org, you also need
+a special "CUPS filter" named "cupsomatic". Get the latest version of
+"cupsomatic" from:</P
+><P
+><A
+HREF="http://www.linuxprinting.org/cupsomatic"
+TARGET="_top"
+>http://www.linuxprinting.org/cupsomatic</A
+></P
+><P
+>This needs to be copied to <TT
+CLASS="FILENAME"
+>/usr/lib/cups/filter/cupsomatic</TT
+>
+and be made world executable. This filter is needed to read and act upon the
+specially encoded Foomatic comments, embedded in the printfile, which in turn
+are used to construct (transparently for you, the user) the complicated
+ghostscript command line needed for your printer/driver combo.</P
+><P
+>You can have a look at all the options for the Ghostscript commandline supported
+by your printer and the ljet4 driver by going to the section "Execution details",
+selecting your model (Laserjet 4 Plus) and clicking on "Show execution details".
+This will bring up this web page:</P
+><P
+><A
+HREF="http://www.linuxprinting.org/execution.cgi?driver=ljet4&printer=75104&.submit=Show+execution+details"
+TARGET="_top"
+>http://www.linuxprinting.org/execution.cgi?driver=ljet4&#38;printer=75104&#38;.submit=Show+execution+details</A
+></P
+><P
+>The ingenious thing is that the database is kept current. If there
+is a bug fix and an improvement somewhere in the database, you will
+always get the most current and stable and feature-rich driver by following
+the steps described above.</P
+><DIV
+CLASS="NOTE"
+><P
+></P
+><TABLE
+CLASS="NOTE"
+WIDTH="100%"
+BORDER="0"
+><TR
+><TD
+WIDTH="25"
+ALIGN="CENTER"
+VALIGN="TOP"
+><IMG
+SRC="/usr/share/sgml/docbook/stylesheet/dsssl/modular/images/note.gif"
+HSPACE="5"
+ALT="Note"></TD
+><TD
+ALIGN="LEFT"
+VALIGN="TOP"
+><P
+>Till Kamppeter from MandrakeSoft is doing an excellent job here that too few
+people are aware of. (So if you use it often, please send him a note showing
+your appreciation).</P
+></TD
+></TR
+></TABLE
+></DIV
+><P
+>The latest and greatest improvement now is support for "custom page sizes"
+for all those printers which support it.</P
+><P
+>"cupsomatic" is documented here:</P
+><P
+><A
+HREF="http://www.linuxprinting.org/cups-doc.html"
+TARGET="_top"
+>http://www.linuxprinting.org/cups-doc.html</A
+></P
+><P
+>More printing tutorial info may be found here:</P
+><P
+><A
+HREF="http://www.linuxprinting.org/kpfeifle/LinuxKongress2002/Tutorial/"
+TARGET="_top"
+>http://www.linuxprinting.org/kpfeifle/LinuxKongress2002/Tutorial/</A
+></P
+><P
+>Note, that *all* the Foomatic drivers listed on Linuxprinting.org (now
+approaching the "all-time high" number of 1.000 for the supported models)
+are using a special filtering chain involving Ghostscript, as described
+in this document.</P
+><P
+>Summary - You need:</P
+><P
+><P
+></P
+><TABLE
+BORDER="0"
+><TBODY
+><TR
+><TD
+>A "foomatic+<VAR
+CLASS="REPLACEABLE"
+>something</VAR
+>" PPD is not enough to print with CUPS (but it is *one* important component)</TD
+></TR
+><TR
+><TD
+>The "cupsomatic" filter script (Perl) in <TT
+CLASS="FILENAME"
+>/usr/lib/cups/filters/</TT
+></TD
+></TR
+><TR
+><TD
+>Perl to make cupsomatic run</TD
+></TR
+><TR
+><TD
+>Ghostscript (because it is called and controlled by the PPD/cupsomatic combo in a way to fit your printermodel/driver combo.</TD
+></TR
+><TR
+><TD
+>Ghostscript *must*, depending on the driver/model, contain support for a certain "device" (as shown by "gs -h")</TD
+></TR
+></TBODY
+></TABLE
+><P
+></P
+></P
+><P
+>In the case of the "hpijs" driver, you need a Ghostscript version, which
+has "ijs" amongst its supported devices in "gs -h". In the case of
+"hpijs+foomatic", a valid ghostscript commandline would be reading like this:</P
+><P
+><PRE
+CLASS="PROGRAMLISTING"
+> gs -q -dBATCH -dPARANOIDSAFER -dQUIET -dNOPAUSE -sDEVICE=ijs \
+ -sIjsServer=hpijs<VAR
+CLASS="REPLACEABLE"
+>PageSize</VAR
+> -dDuplex=<VAR
+CLASS="REPLACEABLE"
+>Duplex</VAR
+> <VAR
+CLASS="REPLACEABLE"
+>Model</VAR
+> \
+ -r<VAR
+CLASS="REPLACEABLE"
+>Resolution</VAR
+>,PS:MediaPosition=<VAR
+CLASS="REPLACEABLE"
+>InputSlot</VAR
+> -dIjsUseOutputFD \
+ -sOutputFile=- -</PRE
+></P
+><DIV
+CLASS="NOTE"
+><P
+></P
+><TABLE
+CLASS="NOTE"
+WIDTH="100%"
+BORDER="0"
+><TR
+><TD
+WIDTH="25"
+ALIGN="CENTER"
+VALIGN="TOP"
+><IMG
+SRC="/usr/share/sgml/docbook/stylesheet/dsssl/modular/images/note.gif"
+HSPACE="5"
+ALT="Note"></TD
+><TD
+ALIGN="LEFT"
+VALIGN="TOP"
+><P
+>Note, that with CUPS and the "hpijs+foomatic" PPD (plus Perl and cupsomatic)
+you don't need to remember this. You can choose the available print options
+thru a GUI print command (like "glp" from ESP's commercially supported
+PrintPro software, or KDE's "kprinter", or GNOME's "gtklp" or the independent
+"xpp") or the CUPS web interface via human-readable drop-down selection
+menus.</P
+></TD
+></TR
+></TABLE
+></DIV
+><P
+>If you use "ESP Ghostscript" (also under the GPL, provided by Easy Software
+Products, the makers of CUPS, downloadable from
+<A
+HREF="http://www.cups.org/software.html"
+TARGET="_top"
+>http://www.cups.org/software.html</A
+>,
+co-maintained by the developers of linuxprinting.org), you are guaranteed to
+have in use the most uptodate, bug-fixed, enhanced and stable version of a Free
+Ghostscript. It contains support for ~300 devices, whereas plain vanilla
+GNU Ghostscript 7.05 only has ~200.</P
+><P
+>If you print only one CUPS test page, from the web interface and when you try to
+print a windows test page, it acts like the job was never sent:
+
+<P
+></P
+><TABLE
+BORDER="0"
+><TBODY
+><TR
+><TD
+>Can you print "standard" jobs from the CUPS machine?</TD
+></TR
+><TR
+><TD
+>Are the jobs from Windows visible in the Web interface on CUPS (http://localhost:631/)?</TD
+></TR
+><TR
+><TD
+><SPAN
+CLASS="emphasis"
+><I
+CLASS="EMPHASIS"
+>Most important:</I
+></SPAN
+> What kind of printer driver are you using on the Windows clients?</TD
+></TR
+></TBODY
+></TABLE
+><P
+></P
+>
+
+You can try to get a more detailed debugging info by setting "LogLevel debug" in
+<TT
+CLASS="FILENAME"
+>/etc/cups/cupsd.conf</TT
+>, re-start cupsd and investigate <TT
+CLASS="FILENAME"
+>/var/log/cups/error_log</TT
+>
+for the whereabouts of your Windows-originating printjobs:</P
+><P
+></P
+><TABLE
+BORDER="0"
+><TBODY
+><TR
+><TD
+>what does the "auto-typing" line say? which is the "MIME type" CUPS thinks is arriving from the Windows clients?</TD
+></TR
+><TR
+><TD
+>are there "filter" available for this MIME type?</TD
+></TR
+><TR
+><TD
+>are there "filter rules" defined in "/etc/cups/mime.convs" for this MIME type?</TD
+></TR
+></TBODY
+></TABLE
+><P
+></P
+></DIV
+></DIV
+><DIV
+CLASS="SECT1"
+><H1
+CLASS="SECT1"
+><A
+NAME="AEN2329"
+>14.10. Limiting the number of pages users can print</A
+></H1
+><P
+>The feature you want is dependent on the real print subsystem you're using.
+Samba's part is always to receive the job files from the clients (filtered
+*or* unfiltered) and hand it over to this printing subsystem.</P
+><P
+>Of course one could "hack" things with one's own scripts.</P
+><P
+>But there is CUPS (Common Unix Printing System). CUPS supports "quotas".
+Quotas can be based on sizes of jobs or on the number of pages or both,
+and are spanning any time period you want.</P
+><P
+>This is an example command how root would set a print quota in CUPS,
+assuming an existing printer named "quotaprinter":</P
+><PRE
+CLASS="PROGRAMLISTING"
+> lpadmin -p quotaprinter -o job-quota-period=604800 -o job-k-limit=1024 \
+ -o job-page-limit=100</PRE
+><P
+>This would limit every single user to print 100 pages or 1024 KB of
+data (whichever comes first) within the last 604.800 seconds ( = 1 week).</P
+><P
+>For CUPS to count correctly, the printfile needs to pass the CUPS "pstops" filter,
+otherwise it uses a "dummy" count of "1". Some printfiles don't pass it
+(eg: image files) but then those are mostly 1 page jobs anyway. This also means,
+proprietary drivers for the target printer running on the client computers and
+CUPS/Samba then spooling these files as "raw" (i.e. leaving them untouched, not
+filtering them), will be counted as "1-pagers" too!</P
+><P
+>You need to send PostScript from the clients (i.e. run a PostScript driver there)
+for having the chance to get accounting done. If the printer is a non-PostScript model,
+you need to let CUPS do the job to convert the file to a print-ready format for the
+target printer. This will be working for currently ~1.000 different printer models, see</P
+><PRE
+CLASS="PROGRAMLISTING"
+> http://www.linuxprinting.org/printer_list.cgi</PRE
+><P
+>Before CUPS-1.1.16 your only option was to use the Adobe PostScript
+Driver on the Windows clients. The output of this driver was not always
+passed thru the "pstops" filter on the CUPS/Samba side, and therefor was
+not counted correctly (the reason is that it often --- depending on the
+"PPD" being used --- did write a "PJL"-header in front of the real
+PostScript which made CUPS to skip the pstops and go directy to
+the "pstoraster" stage).</P
+><P
+>From CUPS-1.1.16 onward you can use the "CUPS PostScript Driver
+for Windows NT/2K/XP clients" (it is tagged in the download area of
+http://www.cups.org/ as the "cups-samba-1.1.16.tar.gz" package).
+It is *not* working for Win9x/ME clients. But it:</P
+><P
+></P
+><TABLE
+BORDER="0"
+><TBODY
+><TR
+><TD
+>it guarantees to not write an PJL-header</TD
+></TR
+><TR
+><TD
+>it guarantees to still read and support all PJL-options named in the driver PPD with its own means</TD
+></TR
+><TR
+><TD
+>it guarantees the file going thru the "pstops" filter on the CUPS/Samba server</TD
+></TR
+><TR
+><TD
+>it guarantees to page-count correctly the printfile</TD
+></TR
+></TBODY
+></TABLE
+><P
+></P
+><P
+>You can read more about the setup of this combination in the
+manpage for "cupsaddsmb" (only present with CUPS installed, only
+current with CUPS 1.1.16).</P
+><P
+>These are the items CUPS logs in the "page_log" for every single *page* of a job:</P
+><P
+><P
+></P
+><TABLE
+BORDER="0"
+><TBODY
+><TR
+><TD
+>Printer name</TD
+></TR
+><TR
+><TD
+>User name</TD
+></TR
+><TR
+><TD
+>Job ID</TD
+></TR
+><TR
+><TD
+>Time of printing</TD
+></TR
+><TR
+><TD
+>the page number</TD
+></TR
+><TR
+><TD
+>the number of copies</TD
+></TR
+><TR
+><TD
+>a billing info string (optional)</TD
+></TR
+></TBODY
+></TABLE
+><P
+></P
+></P
+><P
+>Here is an extract of my CUPS server's page_log file to illustrate
+the format and included items:</P
+><P
+><SAMP
+CLASS="COMPUTEROUTPUT"
+> infotec_IS2027 kurt 40 [22/Nov/2002:13:18:03 +0100] 1 2 #marketing
+ infotec_IS2027 kurt 40 [22/Nov/2002:13:18:03 +0100] 2 2 #marketing
+ infotec_IS2027 kurt 40 [22/Nov/2002:13:18:03 +0100] 3 2 #marketing
+ infotec_IS2027 kurt 40 [22/Nov/2002:13:18:03 +0100] 4 2 #marketing
+ infotec_IS2027 kurt 40 [22/Nov/2002:13:18:03 +0100] 5 2 #marketing
+ infotec_IS2027 kurt 40 [22/Nov/2002:13:18:03 +0100] 6 2 #marketing</SAMP
+></P
+><P
+>This was Job ID "40", printed on "infotec_IS2027" by user "kurt", a 6-page job
+printed in 2 copies and billed to "#marketing"...</P
+><P
+>What flaws or shortcomings are there?</P
+><P
+></P
+><TABLE
+BORDER="0"
+><TBODY
+><TR
+><TD
+>the ones named above</TD
+></TR
+><TR
+><TD
+> CUPS really counts the job pages being *processsed in software*
+ (going thru the "RIP") rather than the physical sheets successfully
+ leaving the printing device -- if there is a jam while printing
+ the 5th sheet out of 1000 and the job is aborted by the printer,
+ the "page count" will still show the figure of 1000 for that job
+ </TD
+></TR
+><TR
+><TD
+> all quotas are the same for all users (no flexibility to give the
+ boss a higher quota than the clerk) no support for groups
+ </TD
+></TR
+><TR
+><TD
+> no means to read out the current balance or "used-up" number of current quota
+ </TD
+></TR
+><TR
+><TD
+> a user having used up 99 sheets of 100 quota will still be able to send and print a 1.000 sheet job
+ </TD
+></TR
+><TR
+><TD
+> a user being denied a job because of a filled-up quota doesn't get a meaningful
+ error message from CUPS other than "client-error-not-possible".
+ </TD
+></TR
+></TBODY
+></TABLE
+><P
+></P
+><P
+>But this is the best system out there currently. And there are
+huge improvements under development:</P
+><P
+></P
+><TABLE
+BORDER="0"
+><TBODY
+><TR
+><TD
+>page counting will go into the "backends" (these talk
+ directly to the printer and will increase the count in sync with the
+ actual printing process -- a jam at the 5th sheet will lead to a stop in the counting)</TD
+></TR
+><TR
+><TD
+>quotas will be handled more flexibly</TD
+></TR
+><TR
+><TD
+>probably there will be support for users to inquire their "accounts" in advance</TD
+></TR
+><TR
+><TD
+>probably there will be support for some other tools around this topic</TD
+></TR
+></TBODY
+></TABLE
+><P
+></P
+><P
+>Other than the current stage of the CUPS development, I don't
+know any other ready-to-use tool which you could consider.</P
+><P
+>You can download the driver files from
+<A
+HREF="http://www.cups.org/software.html"
+TARGET="_top"
+>http://www.cups.org/software.html</A
+>.
+It is a separate package from the CUPS base software files, tagged as "CUPS 1.1.16
+Windows NT/2k/XP Printer Driver for SAMBA (tar.gz, 192k)". The filename to
+download is "cups-samba-1.1.16.tar.gz". Upon untar-/unzip-ping it will reveal
+the files:</P
+><P
+> <SAMP
+CLASS="COMPUTEROUTPUT"
+> cups-samba.install
+ cups-samba.license
+ cups-samba.readme
+ cups-samba.remove
+ cups-samba.ss
+ </SAMP
+>
+ </P
+><P
+>These have been packaged with the ESP meta packager software "EPM". The
+*.install and *.remove files are simple shell script, which untars the
+*.ss (which is nothing else than a tar-archive) and puts its contents
+into <TT
+CLASS="FILENAME"
+>/usr/share/cups/drivers/</TT
+>. Its contents are 3 files:</P
+><P
+> <SAMP
+CLASS="COMPUTEROUTPUT"
+> cupsdrvr.dll
+ cupsui.dll
+ cups.hlp
+ </SAMP
+>
+ </P
+><DIV
+CLASS="CAUTION"
+><P
+></P
+><TABLE
+CLASS="CAUTION"
+WIDTH="100%"
+BORDER="0"
+><TR
+><TD
+WIDTH="25"
+ALIGN="CENTER"
+VALIGN="TOP"
+><IMG
+SRC="/usr/share/sgml/docbook/stylesheet/dsssl/modular/images/caution.gif"
+HSPACE="5"
+ALT="Caution"></TD
+><TD
+ALIGN="LEFT"
+VALIGN="TOP"
+><P
+>Due to a bug one CUPS release puts the <TT
+CLASS="FILENAME"
+>cups.hlp</TT
+>
+into <TT
+CLASS="FILENAME"
+>/usr/share/drivers/</TT
+> instead of
+<TT
+CLASS="FILENAME"
+>/usr/share/cups/drivers/</TT
+>. To work around this, copy/move
+the file after running the "./cups-samba.install" script manually to the right place:</P
+><P
+> <KBD
+CLASS="USERINPUT"
+> cp /usr/share/drivers/cups.hlp /usr/share/cups/drivers/
+ </KBD
+>
+ </P
+></TD
+></TR
+></TABLE
+></DIV
+><DIV
+CLASS="NOTE"
+><P
+></P
+><TABLE
+CLASS="NOTE"
+WIDTH="100%"
+BORDER="0"
+><TR
+><TD
+WIDTH="25"
+ALIGN="CENTER"
+VALIGN="TOP"
+><IMG
+SRC="/usr/share/sgml/docbook/stylesheet/dsssl/modular/images/note.gif"
+HSPACE="5"
+ALT="Note"></TD
+><TD
+ALIGN="LEFT"
+VALIGN="TOP"
+><P
+>This new CUPS PostScript driver is currently binary-only, but free
+no source code is provided (yet). The reason is this: it has
+been developed with the help of the Microsoft Driver Developer Kit (DDK)
+and compiled with Microsoft Visual Studio 6. It is not clear to the driver
+developers if they are allowed to distribute the whole of the source code
+as Free Software. However, they will likely release the "diff" in source
+code under the GPL, so anybody with a license of Visual Studio and a DDK
+will be able to compile for him/herself.</P
+><P
+>Once you have run the install script (and possibly manually moved the
+"cups.hlp" file to "/usr/share/cups/drivers/"), the driver is ready to be
+put into Samba's [print$] share (which often maps to "/etc/samba/drivers/"
+and contains a subdir tree with WIN40 and W32X86 branches), by running
+"cupsaddsmb" (see also "man cupsaddsmb" for CUPS 1.1.16). [Don't forget to
+put root into the smbpasswd file by running "smbpasswd" should you run
+this whole procedure for the first time.] Once the driver files are in the
+[print$] share, they are ready to be downloaded and installed by the
+Win NT/2k/XP clients.</P
+></TD
+></TR
+></TABLE
+></DIV
+><DIV
+CLASS="NOTE"
+><P
+></P
+><TABLE
+CLASS="NOTE"
+WIDTH="100%"
+BORDER="0"
+><TR
+><TD
+WIDTH="25"
+ALIGN="CENTER"
+VALIGN="TOP"
+><IMG
+SRC="/usr/share/sgml/docbook/stylesheet/dsssl/modular/images/note.gif"
+HSPACE="5"
+ALT="Note"></TD
+><TD
+ALIGN="LEFT"
+VALIGN="TOP"
+><P
+> Win 9x/ME clients won't work with this driver. For these you'd
+ still need to use the ADOBE*.* drivers as previously.
+ </P
+></TD
+></TR
+></TABLE
+></DIV
+><DIV
+CLASS="NOTE"
+><P
+></P
+><TABLE
+CLASS="NOTE"
+WIDTH="100%"
+BORDER="0"
+><TR
+><TD
+WIDTH="25"
+ALIGN="CENTER"
+VALIGN="TOP"
+><IMG
+SRC="/usr/share/sgml/docbook/stylesheet/dsssl/modular/images/note.gif"
+HSPACE="5"
+ALT="Note"></TD
+><TD
+ALIGN="LEFT"
+VALIGN="TOP"
+><P
+> It is not harming if you've still the ADOBE*.* driver files from
+ previous installations in the "/usr/share/cups/drivers/" directory.
+ The new cupsaddsmb (from 1.1.16) will automatically use the
+ "newest" installed driver (which here then is the CUPS drivers).
+ </P
+></TD
+></TR
+></TABLE
+></DIV
+><DIV
+CLASS="NOTE"
+><P
+></P
+><TABLE
+CLASS="NOTE"
+WIDTH="100%"
+BORDER="0"
+><TR
+><TD
+WIDTH="25"
+ALIGN="CENTER"
+VALIGN="TOP"
+><IMG
+SRC="/usr/share/sgml/docbook/stylesheet/dsssl/modular/images/note.gif"
+HSPACE="5"
+ALT="Note"></TD
+><TD
+ALIGN="LEFT"
+VALIGN="TOP"
+><P
+> Should your Win clients have had the old ADOBE*.* files and the
+ Adobe PostScript drivers installed, the download and installation
+ of the new CUPS PostScript driver for Windows NT/2k/XP will fail
+ at first.
+ </P
+><P
+> It is not enough to "delete" the printer (as the driver files
+ will still be kept by the clients and re-used if you try to
+ re-install the printer). To really get rid of the Adobe driver
+ files on the clients, open the "Printers" folder (possibly via
+ "Start --&#62; Settings --&#62; Control Panel --&#62; Printers"), right-click
+ onto the folder background and select "Server Properties". A
+ new dialog opens; select the "Drivers" tab; on the list select
+ the driver you want to delete and click on the "Delete" button.
+ (This will only work if there is no single printer left which
+ uses that particular driver -- you need to "delete" all printers
+ using this driver in the "Printers" folder first.)
+ </P
+></TD
+></TR
+></TABLE
+></DIV
+><DIV
+CLASS="NOTE"
+><P
+></P
+><TABLE
+CLASS="NOTE"
+WIDTH="100%"
+BORDER="0"
+><TR
+><TD
+WIDTH="25"
+ALIGN="CENTER"
+VALIGN="TOP"
+><IMG
+SRC="/usr/share/sgml/docbook/stylesheet/dsssl/modular/images/note.gif"
+HSPACE="5"
+ALT="Note"></TD
+><TD
+ALIGN="LEFT"
+VALIGN="TOP"
+><P
+> Once you have successfully downloaded the CUPS PostScript driver
+ to a client, you can easily switch all printers to this one
+ by proceeding as described elsewhere in the "Samba HOWTO
+ Collection" to change a driver for an existing printer.
+ </P
+></TD
+></TR
+></TABLE
+></DIV
+><P
+>What are the benefits with the "CUPS PostScript driver for Windows NT/2k/XP"
+as compared to the Adobe drivers?</P
+><P
+><P
+></P
+><UL
+><LI
+><P
+> no hassle with the Adobe EULA
+ </P
+></LI
+><LI
+><P
+> no hassle with the question "where do I get the ADOBE*.* driver files from?"
+ </P
+></LI
+><LI
+><P
+> the Adobe drivers (depending on the printer PPD associated with them)
+ often put a PJL header in front of the core PostScript part of the print
+ file (thus the file starts with "<VAR
+CLASS="REPLACEABLE"
+>1B</VAR
+>%-12345X" or "<VAR
+CLASS="REPLACEABLE"
+>escape</VAR
+>%-12345X"
+ instead of "%!PS"). This leads to the CUPS daemon autotyping the
+ arriving file as a print-ready file, not requiring a pass thru the
+ "pstops" filter (to speak more technical, it is not regarded as the
+ generic MIME type "application/postscript", but as the more special
+ MIME type "application/cups.vnd-postscript"), which therefore also
+ leads to the page accounting in "/var/log/cups/page_log" not receiving
+ the exact mumber of pages; instead the dummy page number of "1" is
+ logged in a standard setup)
+ </P
+></LI
+><LI
+><P
+> the Adobe driver has more options to "mis-configure" the PostScript
+ generated by it (like setting it inadvertedly to "Optimize for Speed",
+ instead of "Optimize for Portability", which could lead to CUPS being
+ unable to process it)
+ </P
+></LI
+><LI
+><P
+> the CUPS PostScript driver output sent by Windows clients to the CUPS
+ server will be guaranteed to be auto-typed as generic MIME type
+ "application/postscript", thusly passing thru the CUPS "pstops" filter
+ and logging the correct number of pages in the page_log for accounting
+ and quota purposes
+ </P
+></LI
+><LI
+><P
+> the CUPS PostScript driver supports the sending of additional print
+ options by the Win NT/2k/XP clients, such as naming the CUPS standard
+ banner pages (or the custom ones, should they be installed at the time
+ of driver download), using the CUPS "page-label" option, setting a
+ job-priority and setting the scheduled time of printing (with the option
+ to support additional useful IPP job attributes in the future).
+ </P
+></LI
+><LI
+><P
+> the CUPS PostScript driver supports the inclusion of the new
+ "*cupsJobTicket" comments at the beginnig of the PostScript file (which
+ could be used in the future for all sort of beneficial extensions on
+ the CUPS side, but which will not disturb any other application as those
+ will regard it as a comment and simply ignore it).
+ </P
+></LI
+><LI
+><P
+> the CUPS PostScript driver will be the heart of the fully fledged CUPS
+ IPP client for Windows NT/2k/XP to be released soon (probably alongside
+ the first Beta release for CUPS 1.2).
+ </P
+></LI
+></UL
+></P
+></DIV
+><DIV
+CLASS="SECT1"
+><H1
+CLASS="SECT1"
+><A
+NAME="AEN2425"
+>14.11. Advanced Postscript Printing from MS Windows</A
+></H1
+><P
+>Let the Windows Clients use a PostScript driver to deliver poistscript to
+the samba print server (just like any Linux or Unix Client would also use
+PostScript to send to the server)</P
+><P
+>Make the Unix printing subsystem to which Samba sends the job convert the
+incoming PostScript files to the native print format of the target printers
+(would be PCL if you have an HP printer)</P
+><P
+>Now if you are afraid that this would just mean using a *Generic* PostScript
+driver for the clients that has no Simplex/Duplex selection, and no paper tray
+choice, but you need them to be able to set up print jobs, with all the bells
+and whistles of your printers:-</P
+><P
+></P
+><TABLE
+BORDER="0"
+><TBODY
+><TR
+><TD
+>Not possible with traditional spooling systems</TD
+></TR
+><TR
+><TD
+> But perfectly supported by CUPS (which uses "PPD" files to
+ describe how to control the print options for PostScript and
+ non-PostScript devices alike...
+ </TD
+></TR
+></TBODY
+></TABLE
+><P
+></P
+><P
+>CUPS PPDs are working perfectly on Windows clients who use Adobe PostScript
+drivers (or the new CUPS PostScript driver for Windows NT/2K/XP). Clients can use
+them to setup the job to their liking and CUPS will use the received job options
+to make the (PCL-, ESC/P- or PostScript-) printer behave as required.</P
+><P
+>If you want to have the additional benefit of page count logging and accounting
+then the CUPS PostScript driver is the best choice (better than the Adobe one).</P
+><P
+>If you want to make the drivers downloadable for the clients then "cupsaddsmb" is
+your friend. It will setup the [print$] share on the Samba host to be ready to serve
+the clients for a "point and print" driver installation.</P
+><DIV
+CLASS="WARNING"
+><P
+></P
+><TABLE
+CLASS="WARNING"
+WIDTH="100%"
+BORDER="0"
+><TR
+><TD
+WIDTH="25"
+ALIGN="CENTER"
+VALIGN="TOP"
+><IMG
+SRC="/usr/share/sgml/docbook/stylesheet/dsssl/modular/images/warning.gif"
+HSPACE="5"
+ALT="Warning"></TD
+><TD
+ALIGN="LEFT"
+VALIGN="TOP"
+><P
+>What strings are attached?</P
+></TD
+></TR
+></TABLE
+></DIV
+><P
+>There are some. But, given the sheer CPU power you can buy nowadays,
+these can be overcome easily. The strings:</P
+><P
+>Well, if the CUPS/Samba side will have to print to many printers serving many users,
+you probably will need to set up a second server (which can do automatic load balancing
+with the first one, plus a degree of fail-over mechanism). Converting the incoming
+PostScript jobs, "interpreting" them for non-PostScript printers, amounts to the work
+of a "RIP" (Raster Image Processor) done in software. This requires more CPU and RAM
+than for the mere "raw spooling" task your current setup is solving. It all depends
+on the avarage and peak printing load the server should be able to handle.</P
+></DIV
+><DIV
+CLASS="SECT1"
+><H1
+CLASS="SECT1"
+><A
+NAME="AEN2440"
+>14.12. Auto-Deletion of CUPS spool files</A
+></H1
+><P
+>Samba print files pass thru two "spool" directories. One the incoming directory
+managed by Samba, (set eg: in the <B
+CLASS="COMMAND"
+>path = /var/spool/samba</B
+> directive in the [printers]
+section of <TT
+CLASS="FILENAME"
+>smb.conf</TT
+>). Second is the spool directory of your UNIX print subsystem.
+For CUPS it is normally "/var/spool/cups/", as set by the cupsd.conf directive
+"RequestRoot /var/spool/cups".</P
+><P
+>I am not sure, which one of your directories keeps the files. From what you say,
+it is most likely the Samba part.</P
+><P
+>For the CUPS part, you may want to consult:</P
+><P
+></P
+><TABLE
+BORDER="0"
+><TBODY
+><TR
+><TD
+>http://localhost:631/sam.html#PreserveJobFiles</TD
+></TR
+><TR
+><TD
+>http://localhost:631/sam.html#PreserveJobHistory</TD
+></TR
+><TR
+><TD
+>http://localhost:631/sam.html#MaxJobs</TD
+></TR
+></TBODY
+></TABLE
+><P
+></P
+><P
+>There are the settings described for your CUPS daemon, which could lead to completed
+job files not being deleted.</P
+><P
+>"PreserveJobHistory Yes" -- keeps some details of jobs in
+cupsd's mind (well it keeps the "c12345", "c12346" etc. files
+in the CUPS spool directory, which do a similar job as the
+old-fashioned BSD-LPD control files). This is set to "Yes"
+as a default.</P
+><P
+>"PreserveJobFiles Yes" -- keeps the job files themselves in
+cupsd's mind (well it keeps the "d12345", "d12346" etc. files
+in the CUPS spool directory...). This is set to "No" as the
+CUPS default.</P
+><P
+>"MaxJobs 500" -- this directive controls the maximum number
+of jobs that are kept in memory. Once the number of jobs
+reaches the limit, the oldest completed job is automatically
+purged from the system to make room for the new one. If all
+of the known jobs are still pending or active then the new
+job will be rejected. Setting the maximum to 0 disables this
+functionality. The default setting is 0.</P
+><P
+>(There are also additional settings for "MaxJobsPerUser" and
+"MaxJobsPerPrinter"...)</P
+><P
+>For everything to work as announced, you need to have three things:</P
+><P
+></P
+><TABLE
+BORDER="0"
+><TBODY
+><TR
+><TD
+> a Samba-<SPAN
+CLASS="APPLICATION"
+>smbd</SPAN
+> which is compiled against "libcups" (Check on Linux by running <KBD
+CLASS="USERINPUT"
+>ldd `which smbd`</KBD
+>)
+ </TD
+></TR
+><TR
+><TD
+> a Samba-<TT
+CLASS="FILENAME"
+>smb.conf</TT
+> setting of <B
+CLASS="COMMAND"
+>printing = cups</B
+>
+ </TD
+></TR
+><TR
+><TD
+> another Samba-<TT
+CLASS="FILENAME"
+>smb.conf</TT
+> setting of <B
+CLASS="COMMAND"
+>printcap = cups</B
+>
+ </TD
+></TR
+></TBODY
+></TABLE
+><P
+></P
+><DIV
+CLASS="NOTE"
+><P
+></P
+><TABLE
+CLASS="NOTE"
+WIDTH="100%"
+BORDER="0"
+><TR
+><TD
+WIDTH="25"
+ALIGN="CENTER"
+VALIGN="TOP"
+><IMG
+SRC="/usr/share/sgml/docbook/stylesheet/dsssl/modular/images/note.gif"
+HSPACE="5"
+ALT="Note"></TD
+><TD
+ALIGN="LEFT"
+VALIGN="TOP"
+><P
+>Note, that in this case all other manually set printing-related
+commands (like "print command", "lpq command", "lprm command",
+"lppause command" or "lpresume command") are ignored and they
+should normally have no influence what-so-ever on your printing.</P
+></TD
+></TR
+></TABLE
+></DIV
+><P
+>If you want to do things manually, replace the "printing = cups"
+by "printing = bsd". Then your manually set commands may work
+(haven't tested this), and a "print command = lp -d %P %s; rm %s"
+may do what you need.</P
+><P
+>You forgot to mention the CUPS version you're using. If you did
+set things up as described in the man pages, then the Samba
+spool files should be deleted. Otherwise it may be a bug. On
+the CUPS side, you can control the behaviour as described
+above.</P
+><P
+>If you have more problems, post the output of these commands:</P
+><P
+><KBD
+CLASS="USERINPUT"
+> grep -v ^# /etc/cups/cupsd.conf | grep -v ^$
+ grep -v ^# /etc/samba/smb.conf | grep -v ^$ | grep -v "^;"</KBD
+></P
+><P
+>(adapt paths as needed). These commands sanitize the files
+and cut out the empty lines and lines with comments, providing
+the "naked settings" in a compact way.</P
+></DIV
+></DIV
+><DIV
+CLASS="NAVFOOTER"
+><HR
+ALIGN="LEFT"
+WIDTH="100%"><TABLE
+SUMMARY="Footer navigation table"
+WIDTH="100%"
+BORDER="0"
+CELLPADDING="0"
+CELLSPACING="0"
+><TR
+><TD
+WIDTH="33%"
+ALIGN="left"
+VALIGN="top"
+><A
+HREF="printing.html"
+ACCESSKEY="P"
+>Prev</A
+></TD
+><TD
+WIDTH="34%"
+ALIGN="center"
+VALIGN="top"
+><A
+HREF="samba-howto-collection.html"
+ACCESSKEY="H"
+>Home</A
+></TD
+><TD
+WIDTH="33%"
+ALIGN="right"
+VALIGN="top"
+><A
+HREF="winbind.html"
+ACCESSKEY="N"
+>Next</A
+></TD
+></TR
+><TR
+><TD
+WIDTH="33%"
+ALIGN="left"
+VALIGN="top"
+>Printing Support</TD
+><TD
+WIDTH="34%"
+ALIGN="center"
+VALIGN="top"
+><A
+HREF="optional.html"
+ACCESSKEY="U"
+>Up</A
+></TD
+><TD
+WIDTH="33%"
+ALIGN="right"
+VALIGN="top"
+>Unified Logons between Windows NT and UNIX using Winbind</TD
+></TR
+></TABLE
+></DIV
+></BODY
+></HTML
+> \ No newline at end of file