Comment 24 for bug 872711

Some more info:

"lsusb" lists the printer, "ls -l /dev/bus/usb/*/*" shows that UDEV has set the permissions correctly, also the attached UDEV log file shows that the printer was correctly recognized by UDEV and, in case of an HP printer, also HPLIP's UDEV rules were correctly applied. Only wrong thin which one sees is that "sudo /usr/lib/cups/backend/usb" does not list the printer and this is relevant for whether CUPS accepts it (see posted output in duplicate bug 865613).

Following printers and USB->Parallel adapters are known to cause the problem up to now:

- HP Color LaserJet CM3530 MFP
- Xerox Phaser 3100MPF
- HP LaserJet 1200
- HP DeskJet 959C
- HP DeskJet 842C
- Canon IP6700D
- Epson Stylus Photo R300
- Prolific USB->Centronics cable (067b:2305)

As many of the devices are not from HP (where HPLIP works around this bug) the bug should get fixed as an SRU for Oneiric.