This is the most critical step. The printer cannot be in normal "ready" mode.

If you need specific instructions for your printer model, provide the exact model number (e.g., Canon PIXMA MG3220) for more tailored guidance.

Allows for clearing the EEPROM to factory settings.

If you click a button and the software freezes or gives an , it means the software cannot communicate with the printer's mainboard. This happens if the printer is not in Service Mode, if you are using a faulty USB cable, or if a standard print job is jammed in the Windows print queue. Clear your print queue and restart the process. The Danger of "Mainboard Lock"

The Canon Service Tool if your printer is turned on normally. You must manually force the printer into its diagnostic "Service Mode" using a hardware button sequence. Step-by-Step Service Mode Sequence

This software generally does not work with "one-time use" or low-end models like the MG24xx or MG25xx series . Operational Requirements