Once in Service Mode, launch the ServiceTool.exe on your Windows PC.
The software allows users to interact directly with the printer's EEPROM chip when the device is in a specific "Service Mode". canon service tool v 4502 free download
The Canon Service Tool is a maintenance utility used by Canon service centers and advanced technicians. It allows users to access the "Service Mode" of the printer to perform functions that are not available in the standard driver settings. Once in Service Mode, launch the ServiceTool