Question about Canon PIXMA MP780 All-In-One InkJet Printer
Ok, i have that problem. I just remove the ink, and the head cartridge, it is in one piece with kind of electrical contact on it. Nothing to unscrew, just slide it out after you have removed the 5 ink. I then clean with remover the brass contact, and I wash everything under my batroom tap, with hot water for , until no more ink appears. Then I dry carefully the head cartridge with a hair dryer. I put everything back and the error message dissapear. I perform few maintenance like head cleaning, , and everything was fine. I think, the brass contact and the water that remove all ink solve the problem. Work like new
Posted on Jan 12, 2009
Try replacing the printhead with a new one. I had same message and tried everything. With new printhead works like new.
Posted on Oct 21, 2008
Same problem. Anyone? Canon?
Posted on Sep 17, 2008
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Posted on Jan 02, 2017
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