Description of problem: I have a printer based on the hplip package. It is an HP package that adds proper dirvers for all their USB printers. Run: [lael@insight lael]$ printtool Can't understand DeviceURI: hp:/usb/PSC_2350_series?serial=MY48BC42ZYKJ I am sure by what it is erroring out on you can figure out what is going on in code. Looks like _discover_queue in /usr/share/printconf/util/cups_import.py doesn't have a section for "hp".
It isn't an error -- that device has been ignored. system-config-printer doesn't yet have support for hplip, and so it can't represent hplip queues in its configuration. *** This bug has been marked as a duplicate of 143901 ***