Which version of Ubuntu do you have installed? As well, is the gksu package installed? This is required for you to be prompted for the root password.
Thanks. ** Changed in: gnome-cups-manager (Ubuntu) Assignee: (unassigned) => Simon Law Status: Unconfirmed => Needs Info -- Sudo password dialog doesn't appear trying to install printer https://launchpad.net/bugs/62513 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs