If you are connected via USB and receive this message, make sure the Wireless button on the back of the scanner is set to "OFF". By default, it is set to "ON" and you will receive this error message if trying to use the scanner via USB .
https://www.usa.canon.com/internet/portal/us/home/support/details/scanners/ document-scanner / imageformula - dr -c225w-ii/ imageformula - dr -c225w-ii-office- document-scanner ?subtab=downloads-firmware Once the firmware has been updated, you will need to download and install the latest versions of the following files: - TWAIN Driver