Unfortunately I can't repro anymore. The Apply button is enabled if I attempt to switch from the MFC-7220 driver back to the MFC7225, and if I create a new printer with the 7225 driver the Apply button is also enabled if I attempt to switch it to the MFC-7220 driver. :( Closing the bug since it sounds like you wouldn't be able to effectively investigate.
I'm pretty sure that when the problem happened I was using the BR- Script3 driver or the other MFC7225 one labelled Foomatic/Postscript. ** Changed in: system-config-printer (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/782005 Title: Cannot click Apply on "Existing Settings" screen of "Change Driver" wizard in printer properties To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/system-config-printer/+bug/782005/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs