Most users resort to a manual button-press sequence to enter Service Mode and reset the internal counter. The Process: the printer but keep it plugged in. button, then hold the While holding Power, release Stop and press it (some variants use 6 times).
If your printer isn't connecting to Wi-Fi, you can restore its network defaults without a full hardware reset. The Flash Method : Press and hold the Stop button until the Alarm lamp flashes , then release it. The Settings Menu (if available): Navigate through the Canon Setup Menu Device Settings Reset Setting JustAnswer 3. Hard Reset for General Errors canon g3400 reset
If you have just refilled the ink tanks and are seeing air bubbles in the tubes, you can trigger a system-wide ink flush: Most users resort to a manual button-press sequence