There are usb backend issues in CUPS 1.2. Open you /etc/cups/printers.conf and replace
DeviceURI hp://... With: DeviceURI file:///dev/usblp0 -- Samsung ML1740 Printer not recognized in Dapper https://launchpad.net/bugs/49802 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
