CANON iP1200, iP1600, iP2200, iP4200, iP5200, mP150
7/22/2010 by me
1. Turn off the printer, then unplug the power cord
2. Press & hold the POWER button printers use the index finger
3. Reattach the power cord
4. Use the middle finger to press the resume button 2 times
5. Remove your finger from the button POWER
6. You have completed the first phase to reset Ink Tank Full Error
(Power light blinking)