Release all buttons. If the green power light stays solid, you are in Service Mode. : Open Service Tool V3900.exe . Select the correct USB Port number.
The Canon Service Tool V3900 is a specialized software designed to diagnose, repair, and maintain Canon printers. This tool is primarily used by authorized Canon service providers and technicians to troubleshoot and fix complex issues with Canon printers. However, it can also be useful for individual users who want to take control of their printer's maintenance and repair. canon service tool v 3900 free download better
: It can perform nozzle checks, print EEPROM data, and clear platen ink counters. Broad Compatibility Release all buttons