> I just tried /dev/unltp0 and I have the same issues. Basically, I > killed all of the jobs, made your change, submitted a test page, > watched as nothing happened (it didn't display any messages in the web > interface), did a /usr/local/etc/rc.d/cupsd restart, killed the test > page, then resubmitted one, and then it mentioned the USB busy will > retry in 30 seconds line. I reattached my error_log for today's > activities. > > I will be on the road for the better part of a week, so I will try to > help out as much as I can given the circumstances. Thank you everyone > for your assistance with this. >
I found that the usb backend stalled here before actually doing any work. Before I've done any actual debugging of the backend, I suspect that it is being blocked on a status read attempt, though this is only my current guess. Here is a workaround: In printers.conf () you will probably find a line like this: DeviceURI usb:/dev/ulpt0 change usb: to file:, so that it looks something like this: DeviceURI file:/dev/ulpt0 Then restart cups. Cups will not read any status information from the printer, but at least it can print. Be warned about unknown side effects. :) Jan-Espen Pettersen
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