interleaving pages of jobs

[John Beamon]

Helge Blischke wrote:
> John Beamon wrote:
> 
>>cups 1.1.19 on departmental print server and workstation, both RHL9.
>>Canon iR-3300 printer near the server.
>>
>>1.  If I set up the Canon as a local queue on the workstation, so that
>>the workstation talks directly to the Canon without the department cups
>>server, I have no problem.  I can submit job1 and job2 and job3 almost
>>simultaneously, and they spool into the printer and come out collated
>>into separate jobs.
>>
>>2.  If I set up the Canon as a print queue on the department cups server
>>and have the workstation browse the cups server for its printcap, I have
>>a problem.  I can submit job1 and job2 and job3 almost simultaneously,
>>and they spool into the printer and come out as if someone had taken two
>>new decks of cards and shuffled them together.  The pages come out like so.
>>
>>job1-1
>>job1-2
>>job2-1
>>job1-3
>>job2-2
>>job2-3
>>job1-4
>>job1-5
>>job2-4
>>job1-6
>>
>>The correct word for this is "interleaving", but there are no Google
>>results for "cups interleav" that have anything to do with printing in Unix.
>>
>>Any suggestions?
>>
> 
> 
> Are you using banner pages (option job-sheets=...)?
> Or are you printing each page as a separate file?
> 
> Helge
> 

On that particular printer, we were using job-sheets=standard.  However, 
  printing each page as a separate file is a separate issue.  In brief, 
when we first installed CUPS, our particular documents were splitting 
4-page docs into 4 separate one-page jobs, each with a cover sheet and a 
different job ID.  We uncommented the two "application/octet-stream" 
definitions in /etc/cups/mime.*, and that problem went away.  We now 
print those same docs as cover + lots of pages in order.  However, when 
we send two docs within a near time frame, job 2 will filter its pages 
in during the output of job 1.

This might be a CUPS issue, or it might be a Canon iR-3300 issue.  We 
ONLY observe it when we queue from the workstation to the CUPS server, 
not when we queue from the workstation to the Canon.

--
-j