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.
Master Setup (Full Driver & Software Packages) For some models, when setting up the printer via a USB cable, after the USB cable is connected, an error screen appears without the driver installed. [Workaround]
error , or the program does not start or other errors in macOS follow the steps below. ... PIXMA MG PIXMA MP 5600F MG2120 MP250 9000F MG3100 Series MP280 LiDE 110 MG5120 LiDE 210 MG5220 PIXMA MX
Special exceptions for Mac Users If you use a Mac® and have certain PIXMA TS, TR or CanoScan models, drivers aren't available because they use AirPrint technology for printing / scanning.