http://1.bp.blogspot.com/_HKAQn21F63U/THjQWXONJCI/AAAAAAAAAPg/Q_4AIBRzWTo/s1600/1p1200.jpg1. Push “resume” for 5 seconds for canon IPXXXX. For canon MPXXX you must enter to service mode.
2. Push Power switch then remove power cord.
3. Insert plug power cord while pressing “power switch” at the same time.
4. Push Start/reset by step 2 continue Wait display shown “0″
5. Push + change display from “0″ to “1″
6. Push color button 2 times
7. Push Power switch again , Printer will print 1 page
8. Open cover
9. Unplug power cord
10. Take out ink cartridge #40 and #41
11. Insert plug again
12. Push power switch
13. Open cover (scan cover)
14. Insert ink cartridge #40 and #41 again

Enter to service mode for canon MPXXX

* With the printer powered off but connected to a power source, press the Power button while pressing and holding the Stop/ Reset button.
* When the Power is lit, press the Stop/Reset button two times while pressing and holding the Power button.
* When releasing the Power button and the Stop / Reset button (regardless of order), the printer will move into a service mode. (Waiting for menu selection)