Canon Service Tool V3600 23 //free\\ -

: If a user tries to use an older tool (like v3400) on a newer printer, they risk "locking" the printer’s service mode permanently, turning the machine into a paperweight. 3. The Ritual: Entering Service Mode

For exact compatibility with your printer model, check your firmware version in the printer’s service printout before using v3600.23. Canon service tool v3600 23