asked Jun 21, 2007 at 3:35pm
Canon Canon Pixma MP750

Canon Pixma MP750 "Horizontal bars on display"

All I can see in the display is a line of vertical bars in the lower part. If I try to turn it off it does not work, I have to unplug the power cord. I have check the power cord and it is OK. My printer is not detected by my computer. It looks like it is off even if I press the ON bottom. Besides the computer does not detect it. Any idea what is the problem. I think the problem could be the display circuit board.