While holding Power, release Resume and then press it (or 6 times for some MG series).
Includes iP series (e.g., iP2700, iP4800, iP4900), MG series (e.g., MG5100, MG5200), and various iX and MP models.
Enables various test prints to check the health of the print head and logic board. Compatibility and Requirements
Provides options to manage specific sections of the ink absorber, such as the "Main" or "Platen" counters.
A direct USB cable connection between the printer and the PC is mandatory; wireless or network connections will not work for these service operations. How to Use Canon Service Tool V3400
Press and hold the button, then press and hold the Power button.
While holding Power, release Resume and then press it (or 6 times for some MG series).
Includes iP series (e.g., iP2700, iP4800, iP4900), MG series (e.g., MG5100, MG5200), and various iX and MP models.
Enables various test prints to check the health of the print head and logic board. Compatibility and Requirements
Provides options to manage specific sections of the ink absorber, such as the "Main" or "Platen" counters.
A direct USB cable connection between the printer and the PC is mandatory; wireless or network connections will not work for these service operations. How to Use Canon Service Tool V3400
Press and hold the button, then press and hold the Power button.

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