[cups] Text being garbled - Ricoh Pro 1156/1157 - Cups 1.5 and 1.7.2

[Helge Blischke]

> Am 20.04.2016 um 18:39 schrieb Chris Coleman <c at chriscoleman.com>:
> 
> Hi all,
> I have been using Cups for quite some time now with stellar results.
> However about 6 months ago an error was found in a printed document in
> which a few discrete pieces of text had been garbled. Nothing odd about the
> text in question. I believe it's an Arial Bold 8pt or 9pt table header
> element.
> 
> The document being printed was actually a large collection of smaller pdf
> files that had been merged together. I was able to go back to the original
> 2 pg pdf and reliably reproduce the issue by simply printing it through
> Cups. However, if I were to open the file on a windows machine and print,
> it would print without error.
> 
> At the time, we were running on Ubuntu 14.04 with Cups 1.7.2. I had a
> backup server that was running ubuntu 12.04 and cups 1.5.3 so I switched
> over to that and the issue went away. Woohoo! So we moved our workload over
> to that server.
> 
> Fast forward a month and boohoo! the problem appeared again on the 1.5.3
> box. Different files of course. And once again, printing from windows was
> fine. At that point I decided to go ahead and put together a fresh ubuntu
> 12.04 installation without any updates, the problem persists.
> 
> Unfortunately I can't really share the documents in question... I would be
> quite grateful if anyone could provide me with any troubleshooting
> advice/ideas that I could use to pursue this?
> 
> Thanks,
> Chris
> _______________________________________________

As a first step, I’d suggest you do a
grep "Job xxxx“ /var/log/cups/error_log
(where xxxx is the job ID of the job in question) and post the output of this
command. So I can see what filters are involved and do a first guess where to look further.

Helge