Do you get any information if you run gnome-cups-manager from a terminal? If so, please attach.
Ubuntu disables the cups webinterface in favor of gnome-cups-manager. Did you add cypsys user to the shadow group? You should do this to enable cups webinterface in Ubuntu. More information can be found here: https://help.ubuntu.com/community/PrintingCupsWebInterface -- hplip cannot find DeskJet 5440 printer, despite CUPS's claims to the contrary https://launchpad.net/bugs/49107 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
