The devices for your printer seems to be wrong: ipp://usb://Canon/iP3000 The part after ipp:// is interpreted as a hostname, that's why you get the Unable to lookup host 'usb' - Unknown host.
For a directly connected printer the device should be: usb://Canon/iP3000 What happens if you reinstall your printer queue? -- Printing: Unable to lookup host 'usb' - Unknown host https://bugs.launchpad.net/bugs/138473 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
