I've followed the advice given here and upgraded to the latest experimental libsane and libsane-common, which fixed the problem. simple-scan now works again with my Canon PIXMA MG5250.
http://askubuntu.com/a/717682/18373 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1526198 Title: simple-scan doesn't work with MG5350 anymore (wifi) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/simple-scan/+bug/1526198/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs