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
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Mar 25, 2011 | Lexmark X3650 Printer
Jul 31, 2009 | Office Equipment & Supplies
Jan 10, 2009 | HP OfficeJet t65xi All-In-One InkJet...
Jan 07, 2009 | Canon MultiPASS MP730 All-In-One InkJet...
Aug 15, 2008 | Canon MultiPASS MP730 All-In-One InkJet...
May 09, 2008 | Canon MultiPASS MP700 All-In-One InkJet...
1,094 people viewed this question
Usually answered in minutes!