Ensure the printer is connected to your PC using a . Wi-Fi will not work. Press and hold the Stop/Reset button (red triangle icon). While holding Stop/Reset, press and hold the Power button. Keep holding Power, then release the Stop/Reset button.
: Resetting the waste ink counter does not physically clean the ink sponges. If reset too many times without physical maintenance, ink may eventually leak from the bottom of the device. canon service tool v5103