I have confirmed that this a user issue rather than a bug. I was able to get the scanner to work if you properly perform the procedure and remove the white background piece. It unlatches and can be removed.
** Changed in: sane-backends (Ubuntu) Status: Confirmed => Invalid ** Converted to question: https://answers.launchpad.net/ubuntu/+source/sane-backends/+question/669402 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to sane-backends in Ubuntu. https://bugs.launchpad.net/bugs/1744775 Title: "Operation was cancelled" when trying to use Transparency Unit in Canon 9000F Mark II Status in sane-backends package in Ubuntu: Invalid Bug description: I'm trying to scan foto negatives using this command (that used to work in previous Ubuntu versions): scanimage --device-name pixma:04A9190D --source "Transparency Unit" --resolution "2400" --format "tiff" --mode Color -l 76 -x 66 > test.tiff But I get this error: scanimage: sane_read: Operation was cancelled Note: scanning regular images (using the Flatbed source) works fine. My current ubuntu verison is Ubuntu 17.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1744775/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp