Press the button once. The printer will reset the internal counter and may print a page showing D=000.0 , confirming the reset. Turn the printer off and then back on to exit Service Mode. Factory Reset (Settings & Network)
If you need to wipe all custom settings, such as Wi-Fi configurations or passwords, use these button combinations: canon g3400 reset
Release the Stop button, then press it while still holding the Power button. Press the button once
Press and hold the Stop button until the Alarm lamp flashes 23 times , then release it. Factory Reset (Settings & Network) If you need
If you have just refilled the ink tanks and are seeing air bubbles in the tubes, you can trigger a system-wide ink flush:
Release both buttons. Wait for the green power light to stop flashing and stay solid. Press the Stop button 5 times .