Can you try the package
cups - 1.5.0-8ubuntu7~ppa1
from my PPA
https://launchpad.net/~till-kamppeter/+archive/ppa
Its USB backend is based on the new libusb 1.0.x. Perhaps this helps on your problem.
The backend can sttill have bugs, so tell us exactly what the behavior is after having installed the new CUPS package.
Can you try the package
cups - 1.5.0-8ubuntu7~ppa1
from my PPA
https:/ /launchpad. net/~till- kamppeter/ +archive/ ppa
Its USB backend is based on the new libusb 1.0.x. Perhaps this helps on your problem.
The backend can sttill have bugs, so tell us exactly what the behavior is after having installed the new CUPS package.