While still holding the button, press and hold down the Power button.

Because this software interacts directly with your printer's firmware, specific system configurations must be met to avoid permanently corrupting the printer's mainboard.

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Because Canon does not officially distribute this software to the general public, finding a legitimate download link requires extreme caution. Beware of Malware and Phishing Sites

Canon Service Tool V5103 Download: The Complete Guide to Resetting Your Printer