I had similar problems with HP PSC 1315 MFD, but I have solved it.
Make sure the device URI is similar to
usb:/dev/usb/lp0
and *not* anything else! Only this works.
You might find this useful:
http://www.linuxquestions.org/questi...hreadid=331050
Another useful site:
www.linuxprinting.org
You might also want to try using the
hpoj driver rather than the
hpijs driver in case the above does not work.
In fact, I think scanning should work with the
hpoj driver. Both drivers can coexist.
Regards.