Comment 13 for bug 1808581

I think my only other option is to de-install and re-install the printer driver. That is a pain because Canon does not support Linux drivers. I have to search the web for the latest version from a hopefully reliable source. It takes a day. Doing this always results in inconsistent results for print and scan function on the printer. Sometimes only print works, other times only scan. Since this happened when I upgraded my machine to 18.04, re-installing may be the best answer.