The HP DeskJet 3550 is in the database: http://www.linuxprinting.org/show_printer.cgi?recnum=HP-DeskJet_3550
and it has even the device ID strin registered. So it seems to be a problem of gnome-cups-manager. Perhaps it does not extract the right bits from the CUPS auto-detection output. Can you do sudo rmmod usblp sudo modprobe usblp sudo lpinfo -l -v and post the output here? -- Wrong printer model is preselected when adding a HPLIP printer https://launchpad.net/bugs/54362 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs