12.04LTS. HP K80 printer. device shows up both in lsusb and in the "discovered devices" in the HP Device Manager. I ran the device manager under gksudo, same results. The GUI app sees the device ("1 device found") but then its tells me "unable to communicate with the device. Please check the device and try again." Device is fine, works like a champ on same box in XP.

Any advice?