: Not every Canon printer supports V4718. Using the wrong version while in Service Mode can "freeze" the printer's logic board.
To use this tool, the printer must first be placed in . This is generally achieved through a specific sequence of button presses: Power Off : Ensure the printer is plugged in but turned off.
: Hold the Stop/Reset button, then press and hold Power . While holding Power, release Stop and press it 5 or 6 times (depending on the model).
