How to Reset Canon Pixma IP2770:
Temporary Reset: Entering Service Mode
1. Turn off the printer without pulling the power cords.
2. Hold down Resume button and press Power button.
3. Keep holding down Power button and let Resume button go.
4. Then Press Resume button 5 times then let BOTH buttons go.
5. You will notice that the Alternate Blinking error is gone, this means that the printer is in Service Mode state.
Permanent Reset with Resetter Canon IP2770
1. After you download the resetter, extract it and double click “servicetool.exe”
2. Press the “Main” Button, Then press “EEPROM Clear” button if a pop-up appear just click OK
5. Then power off the printer(sometimes you have to press twice the power button to turn off) and turn on again. and its done!
sumber; http://comptechreview.com/2011/07/05/reset-canon-ip2770/
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