This looks like that the "hp" CUPS backend has problems accessing the printer.
Can you all do the following tests:
1. Do
/usr/lib/cups/backend/hp
and post the output
2. Do
sudo aa-complain cupsd /usr/lib/cups/backend/hp
and post the output.
3. Can you print after doing
sudo aa-complain cupsd
This looks like that the "hp" CUPS backend has problems accessing the printer.
Can you all do the following tests:
1. Do
/usr/lib/ cups/backend/ hp
and post the output
2. Do
sudo aa-complain cupsd cups/backend/ hp
/usr/lib/
and post the output.
3. Can you print after doing
sudo aa-complain cupsd