Using the service tool requires putting the printer into a specific . Incorrect procedures can permanently lock the printer's service mode or "brick" the device. Enter Service Mode : Turn off the printer but keep it plugged in. Press and hold the Stop/Resume button. While holding Stop , press and hold the Power button.
: Includes nozzle checks and deep cleaning routines to maintain hardware health. How to Use the Service Tool Safely canon service tool v4720 download verified
: Clears the internal counter that tracks waste ink levels. Using the service tool requires putting the printer
: Allows for precision adjustments to print quality. canon service tool v4720 download verified