I installed cups, foomatic and hpijs, configured everything, but couldn't print. After turning on cups debug log, I discovered pnm2ppa was missing. After installing, everything works fine. So I think hpijs should get an additional dependency on pnm2ppa. Reproducible: Always Steps to Reproduce: 1. Emerge cups, foomatic and hpijs 2. Unmerge pnm2ppa. 3. Configure cups. 4. Try to print. I have a HP DeskJet 710C, parallel port.
I think that is not needed for every printer .. so it is not strictly a depend. Also please have a look at hplip instead of hpijs