Factory reset

1. Turn off the printer.

2. Press and hold the ON button while pressing the Stop button. (DO NOT release both buttons).

3. When the Power LED lights in green, while holding the ON button, release the Stop button. (DO NOT release the ON button.)

4. While holding the ON button, press the Stop button 2 times, and then release both the ON and Stop buttons.

5. The printes turns into a kind of factory mode...(wait for about 10 seconds, until it says "Idle")

6. Press the ">" (next to the "OK" button) once."Shipping Mode 3"

7. Press the "OK" button.

8. Press "OK" again for "Without cleaning"

9. A test page will print..

10. Open the cover, like you are about to change the cartridges.

11. Disconnect the power cable again.

12. Take out both cartridges.

13. Close the cover.

14. Connect the power cable once again.

15. Turn the printer on.

16. Now just put the cartridges back and the ink level in the canon Pixma MX3XX have full again.

Resetting errors

1. Turn off your printer

2. Press and hold the STOP/RESET button

3. Press and hold Power ON button

4. While holding the Power ON button, release the STOP/RESET button

5. While holding still the Power ON button, press twice the STOP/RESET button

6. Release the Power ON button

7. Wait until it display an "idle" message. It will take about a minute.

8. When "idle" appear, open the top cover to expose the cartridges.

9. Lift up the cover for cartridge holder and take out both the black and color cartridges

10. Return the cover of cartridge holder and turn off the printer

11. Return the top cover and turn on the printer again

12. After the printer initialize, return the cartridges.

1. Press and Hold the STOP/RESET button and wait until it self restart.

2. Release the STOP/RESET button the the printer is restarting.

3. Wait for a few seconds