Question about Canon PIXMA MP780 All-In-One InkJet Printer

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Wrong cartridge message - Canon PIXMA MP780 All-In-One InkJet Printer

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  • hal9 Jul 14, 2008

    Printer was working fine until the infamous "Wrong Cartrige" error appeared. I have heard others say that replacing the head works. Is there no way to simply clear the error? It seems unlikely that the head is really defective unless it is designed to do just this after a time.

  • Anonymous Aug 13, 2008

    cartrige error

  • curtiscabine Aug 25, 2008

    I keep getting "wrong cartridge" message. Printer was working fine until this happened so it is unlikely I now have the wrong cartridge. I cannot clear the message. I have tried unplugging the printer. Do I need a new print head??? It's hard to get my paperwork done without a printer. Help!!

  • donlyn Aug 27, 2008

    Removed and replace cartridges, nothing worked. Tried to change settings and it also did not mak any difference

  • keddie82 Oct 21, 2008

    I have the same problem. I have 2 identical printers. I swapped the print head. I get the same error on the same machine.

  • Anonymous Dec 09, 2008

    Our printer was working fine. My husband had just printed 50 pages a few days before without a problem, then my daughter tried to print something and the "wrong cartridge" message popped up. I tried shutting it off and then I tried replacing the ink, nothing will get rid of the message.

  • Anonymous Dec 27, 2008

    brand new printer - got this error message with the supplied equipment. Very helpful.

  • Ausfixer Mar 30, 2009

    Same problem - tried cleaning but did not fix the problem. Will try a new print head.


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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

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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

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Same problem. Anyone? Canon?

Posted on Sep 17, 2008

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