iP2700 Series, iP4800 Series, MG5100 Series:

1. In order to execute any service functions on this printer you need to start it in the service mode:
1.1. Power cord must be connected and printer is powered off.
1.2. Press and hold resume/cancel button (one with triangle in the circle).
1.3. Press ON button while holding resume/cancel button (now you are holding both).
1.4. While holding the ON button press resume/cancel button 5 times.
1.5. Each time when you are pressing resume/cancel button the alarm and power LEDs light alternately.
1.6. Release ON button.
1.7. If your printer have a touch screen you must hold area on the screen where resume/cancel button is normally appear.
2. When everything done right you will see the following:
2.1. If printer have a screen it will be black or show "service mode" text.
2.2. New device will be found on the PC named "CanonDevice".
2.3. "Canon Device" will appear in the list after pressing "Refresh detected printers list" button.
3. In order to reset waste counters you need to do next:
3.1. Insert several sheets of paper to the rear tray and casette.
3.2. Select waste counter in the "Waste Counter(s) control group and click "Clear".

Canon IP2700 – Reset Ink Levels On The Cartridges

The Canon iP2700 cannot physically see inside the cartridges to find out how much ink is actually left. Instead, the copper contacts on the outside of the cartridges contain this information. The ink levels start at full. Every time a page is printed or a head cleaning routine run, the printer writes this information to the cartridge. Eventually, the cartridge will state that it is empty. However this may not be the case, and it may be possible to use the remaining ink in the cartridge.

If you have refilled your cartridge, or have purchased a remanufactured one, the copper contacts will already hold the information that the cartridge is empty. Clearly they are not, but it is not currently possible to reset the ink level information on the copper contacts of the cartridge.

Instead, you simply need to override the empty error message that is being displayed by holding down the “stop / reset” button on the printer for around five seconds. The printer should continue printing, and use any of the remaining ink in the cartridge.

If the printer thinks that both cartridges are empty, you will receive a second error message, and you will need to hold the button for another five seconds.

If the circuitry on the cartridges is actually damaged, unfortunately, this process will not work.