asked Oct 13, 2011 at 8:27pm
Canon Canon Pixma MP640

Canon PIXMA MP640 printer - ink cartridge problem

After changing ink cartridges I get a message: Printer error has occurred. Turn off power and back on again. If problem persists see the manual.

The "manual" doesn't give any advice whatever.

I have turned it off and back on again multiple times with no results. Help!