If you see Support Code 2110 on the LCD screen of your PIXMA printer, it means the paper settings you entered on your computer or the printer are different from the paper in the printer tray (cassette). For example, you will see this error when: You enter these settings for the print task:
This article explains what to do if you see the error "You do not have permission to open the application “Canon IJScanner###" when scanning after installing the ICA driver for your scanner or multifunction printer on macOS 11.5.