As i can't reproduce your bug, can you upgrade your system uptodate. replacing/purging cups configuration files and see if the bug still here.
** Changed in: gnome-cups-manager (Ubuntu) Status: Unconfirmed => Needs Info -- can't add printer, consumes 100% CPU https://launchpad.net/bugs/44465 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs