Quick look at the CUPS code tells me that printer server is trying to say something to your CUPS, but your CUPS doesn't understand that.
Could you take a look at your server's logs and config? -- Cupsys queue never empties https://launchpad.net/bugs/47400 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
