Printers stopping, jobs held CUPS 1.2.12

[Joe D. Trent]

Hi,

I knew better than to take the machine down for maintenance. I only 
replaced a tape drive and cd burner and installed a few minor Fedora 
updates.

The setup:

Linux monolith 2.6.22.14-72.fc6 #1 SMP Wed Nov 21 14:10:25 EST 2007 
x86_64 x86_64 x86_64 GNU/Linux

CUPS 1.2.12

I have 11 printers setup--a mixture of laser printers connected into the 
network and parallel dot matrix printers connected via d-link printservers.

Since the reboot, each of the printers has stopped in a seeming random 
fashion. All it takes is for me to start the printer again from the 
web-based CUPS administration printers page. The problems are not 
limited to printers on the d-links.

I saw references to the problem and changed printers.conf / ErrorPolicy 
from "stop-printer" to "retry-job". That seems to have changed the 
symptoms from stopping the printer to holding the job. Now I have to go 
into "jobs" and release them.

Here is the printers.conf configuration for one printer:

<Printer dfx5kp-M>
Info Line Printer
Location Front Office
DeviceURI lpd://192.168.40.50/PS-804A7B-P1
State Idle
StateTime 1233242227
Accepting Yes
Shared Yes
JobSheets none none
QuotaPeriod 0
PageLimit 0
KLimit 0
OpPolicy default
ErrorPolicy retry-job

and error_log for an offending job:

I [30/Jan/2009:09:06:59 -0600] Adding start banner page "none" to job 47361.
I [30/Jan/2009:09:06:59 -0600] Adding end banner page "none" to job 47361.
I [30/Jan/2009:09:06:59 -0600] Job 47361 queued on "dfx5kp-M" by "glewis".
I [30/Jan/2009:09:06:59 -0600] Started backend /usr/lib/cups/backend/lpd 
(PID 30049) for job 47361.
W [30/Jan/2009:09:07:06 -0600] [Job 47361] Remote host did not respond 
with command status byte after 300 seconds!
E [30/Jan/2009:09:07:06 -0600] PID 30049 (/usr/lib/cups/backend/lpd) 
stopped with status 1!
I [30/Jan/2009:09:07:06 -0600] Hint: Try setting the LogLevel to "debug" 
to find out more.
I [30/Jan/2009:09:07:06 -0600] [Job 47361] Backend returned status 1 
(failed)
I [30/Jan/2009:09:07:36 -0600] commptr="?FIRST=0&ORDER=asc"
I [30/Jan/2009:09:07:36 -0600] Started 
"/usr/lib/cups/cgi-bin/printers.cgi" (pid=30089)
I [30/Jan/2009:09:07:43 -0600] commptr=""
I [30/Jan/2009:09:07:43 -0600] Started "/usr/lib/cups/cgi-bin/jobs.cgi" 
(pid=30150)
I [30/Jan/2009:09:07:52 -0600] 
commptr="?op=release-job&job_id=47361&job_printer
_uri=/printers/dfx5kp-M"
I [30/Jan/2009:09:07:52 -0600] Started "/usr/lib/cups/cgi-bin/jobs.cgi" 
(pid=30177)
I [30/Jan/2009:09:07:52 -0600] Started backend /usr/lib/cups/backend/lpd 
(PID 30178) for job 47361.
I [30/Jan/2009:09:07:52 -0600] Job 47361 was released by "root".
I [30/Jan/2009:09:08:45 -0600] cupsdCloseClient: SSL shutdown successful!
I [30/Jan/2009:09:08:45 -0600] cupsdCloseClient: SSL shutdown successful!
I [30/Jan/2009:09:08:45 -0600] cupsdCloseClient: SSL shutdown successful!
I [30/Jan/2009:09:08:45 -0600] cupsdCloseClient: SSL shutdown successful!
I [30/Jan/2009:09:09:00 -0600] cupsdCloseClient: SSL shutdown successful!
I [30/Jan/2009:09:09:00 -0600] cupsdCloseClient: SSL shutdown successful!

Note: I received the message that the host did not respond after 300 
seconds only seven seconds after it was queued.

Gladly taking suggestions.

Thanks,
Joe