Xerox 7750 Media Size switching

[Helge Blischke]

Anonymous wrote:
> 
> > > Hi,
> > >
> > > I was not able to get much output from the CUPS' error_log file with debug (or debug2 on), it just appears to be normal setup communication stuff:
> > >
> > > <SNIP/>
> > >
> > > You will find the PPD at:
> > > http://rg415.bravehost.com/ppd/Xerox%20Phaser%207750GX.txt
> > >
> > > In my continuing hunt for a solution, I found this page:
> > > http://www.samba.org/samba/docs/man/Samba-HOWTO-Collection/CUPS-printing.html#id2603130
> > >
> > > At the very end of it there is a diagram outlining the CUPS system.
> > > Notice that Mac OS/X systems use their own Apple PDF-RIP.  Since I am connecting directly to CUPS via IPP from my application, am I bypassing this Apple PDF-RIP and therefore not getting the control file that is produced when printing through other Mac applications?
> > > If so, how can I programmatically initiate the same printing path thru the Apple PDF-RIP?
> > >
> > > Thanks,
> > > RG
> >
> >
> > Well, if the printer really is a Phaser 7750 GX, it is equipped with a hard disk and
> > digests PDF (up to 1.4) directly. You log file snippet seems to assert that the PDF is
> > fed unprocessed to the printer.
> >
> > As for PostScript jobs, your PPD references a filter named pstoxeroxps, the properties of which
> > are not found anywhere.
> >
> > From my experience with a similar printer I suspect that printing to a specific media size
> > only works if either
> > - the media is installed (in your case, one of the input trays must be configured to hold
> >   tabloid sized paper),
> > or
> > - the paper mismatch handling must be configured to operator prompt (in which case a prompt
> >   should occur on printer's tiny display, and somebody has to either accept or change paper.
> >
> > So, these probably are the final hints I am able to give to you.
> >
> > Helge
> >
> 
> Hi,
> 
> The trays are installed as you mention with Tabloid and Letter trays set up.
> The control file of the pdf that works (printed with the Mac app - Preview) contains a line MediaType AutoSelect - I think this comes from the Xerox PPD file.  I have not found how I might force set this through the IPP protocol. Can I?
> 
> RG

Yes. On an ordinary Linux/UNIX CUPS installation you use the "configure printer" button of the
"http://localhost:631/printers/yourprinter" page. I don't know how this will be
configured on MacOX X with the printer configuring tool there. If you cannot set it by GUI,
you could edit the pritner's PPD (in /etc/cups/ppd/your_printer_name.ppd), look there for
the keysord "*DefaultMediaType:" and set the value to "AutoSelect" (all without the quotes).
Then restart CUPS, and it should work.

Helge

-- 
Helge Blischke
Softwareentwicklung
SRZ Berlin | Firmengruppe besscom
http://www.srz.de