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

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Canon pixma mp 780 gives wrong cartridge message and won't print

My 3 year old mp780 worked fine until about a month ago. I changed a cartridge and it started showing "wrong cartridge" message. I've done everything I can think of from leaving it unplugged for 24 hours, etc. It did print a couple times but then the error message came back. My computer tech thinks it is because I am not using canon original cartridges, but I have been using these same cartridges from 123 inkjet for the last 3 years and they have always worked until now. The tech also said maybe to get a new printer head and see if that fixed the problem. I haven't found a replacement for less than $68.00 and I'm hesitant to change it for that price. I may be better off to just get a new printer and throw this one out. Give me your input.
David

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  • 5 more comments 
  • thcurb Jan 24, 2009

    yep. samer thing. changed all the cartridges again and check the print head. help! kenthecurb

  • shyspeed Jan 25, 2009

    printer head blocked , now mine wont turn on

  • Anonymous Jan 27, 2009

    same here! on and off didn't help!:(

  • Anonymous Feb 06, 2009

    I HAVE THE SAME PROBLEM ON MY PIXMA MP 780 SAYS WRONG CARTRIDGE ...PLZ HELP

  • Anonymous Feb 06, 2009

    YES I DO HAVE THE SAME WRONG CARTRIDGE PROBLEM ON MY PIXMA MP780,IT WORKS SOMETIMES AND STOPS WORKING AS THE MESSSAGE APPEARS...PLZ HELP...SHAKEEL

  • mmiller6262 Apr 22, 2009

    Same problem, out of the blue. I removed the cartridge and reinstalled. Said was fine, so I printed, and blank pages. Now the error is back. I give up, and going to buy a HP next time.

    Mike M

  • Anonymous Apr 25, 2009

    Hey Guys unfortunately I have also had the same problem, says WRONG CARTRIDGE, printer had not been touched since last ink change printitng fine then out of blue comes up with fault, have tried news ink etc, next looking at Printer Head,
    agree with Evadruth about price if not problem......

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Printer head is blocked......

great printer when they work.

Posted on Jan 28, 2009

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