Double printing problem after CUPS update

[Helge Blischke]

Alexander Urban wrote:

>> Alexander Urban wrote:
>>
>> >> Alexander Urban wrote:
>> >>
>> >> > Hi there,
>> >> >
>> >> > I have a problem after update to CUPS 1.5. (I think the old one was
>> >> > 1.4.7 but not sure)
>> >> >
>> >> > Our "workgroup" printer is a KM bizhub c452 (for 250 users, ~220 of
>> >> > them Windows users doing fine, and 20 Macs and 10 Linuxes).
>> >> >
>> >> > With CUPS 1.5, everything is printed twice, I don't know why. On the
>> >> > CUPS versions used earlier, everything was printed once.
>> >> >
>> >> > Problem occurs on more than one machine - all iMacs (about a dozen)
>> >> > and some linux boxes.
>> >> >
>> >> > How can I debug this? I'm new to debugging in printer environment,
>> >> > so step-by-step procedures would be appreciated.
>> >> >
>> >> > Kind regards,
>> >> >
>> >> > Alexander
>> >>
>> >> On one of the boxes where this issue occurs, do the following:
>> >>
>> >> - execute
>> >>   cupsctl --debug-logging
>> >>   (to set logging to debug)
>> >> - print a file
>> >> - after the print is complete, execute
>> >>   cupsctl --no-debub-logging
>> >> - post the portion of the /var/log/cups/error_log which contains the
>> >> messages related to the test job.
>> >>
>> >> Helge
>> >
>> > Got it: http://pastebin.com/KR4WnZks
>> >
>> > Alex
>>
>> As i currently have no running CUPS 1.5,I can only guess:
>> I suspect that the printer, though rejecting IPP 2.0, still internally
>> keeps the request and processes both the IPP 2.0 and the IPP 1.1 request
>> which then would cause the double printing (the Bizhubs internally save
>> the print data before printing, AFAIK).
>>
>> To further settle down the issue, I'd suggest the following:
>> (1) check if other vendor's printers that support IPP (or pretend to do
>> so) reveal the same issue (the messages regarding the IPP version are of
>> class INFO, so a log-debug is not necessary).
>> (2) for a test, change the *cupsFilter line(s) in the Bizhub's PPD to a
>> comment (replace the *cupsFilter by *%cupsFilter) and test if the issue
>> remains.
>>
>> Helge
>>
> 
> I'm sorry, I have no other printer at hands. And then, in the PPD there is
> no cupsFilter line.
> 
> I got another linux box with the problem and a unique setup:
> 
> -> It has CUPS 1.4.3(!)
> -> It has the c452 installed twice - via SMB and IPP, and both show the
> double printing problem.
> 
> http://pastebin.com/8tJrhvxW
> 
> The problem with that is that in April 2011, there was no problem
> whatsoever. I know one hundred percent sure, because the printer was new
> then, and just worked out of the box everywhere. And 1.4.3 was already
> installed on this box as of December 2010 - and printed correctly when the
> printer was new.

Well, I have no idea with respect to CUPS. Did you update the printer's 
firmware or otherwise  change the printer's configuration in between?
The c452 has - like all Bizhub printers - a fairli comfortable web interface 
for management and maintenance.

Helge