The use of the transparency unit in Canon 9000F Mark II requires to take the regular white background away from the covering lid, beneath with the actual backlight of the transparency unit resides.
Any scanning attempt with the transparency unit as source while the backlight is hidden by the white background yields the error described above – which is, sadly, not very descriptly. After taking way the background the transparency unit works like a charm. @Jelle you might try whether this works for you. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1744775 Title: "Operation was cancelled" when trying to use Transparency Unit in Canon 9000F Mark II To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1744775/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
