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

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Mp780 wrong cartridge error

Q: Hi, on a pixma mp780 I get an error message displaying on the screen saying "Wrong Cartridge". This occured suddenly after printing one page which was a good quality print. The machine was always well cared for and reasonably used. No apparent reason. Tried reseting, changing ink tanks (no chip),wiping under printhead,checked connection at printhead board.

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Michael Grey

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Try to reset to factory .
Remove ink cartridges and print head.
Power off machine and unplug for 10-15 minutes.
Restart machine and install head and cartridges.

Posted on Jun 17, 2009

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My MP780 is displaying wrong cartridge, I tried to use the ok button, and tried to turn the printer off and then back on again and the error message won't clear, I even went so far as to take all the...


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Hi, I see others have had this problem but can't find an answer (I am not still under warranty). Pixma MP780 suddenly giving a "wrong cartridge" error message. Have only used genuine Canon but have...



I have to ask this question of you, just to make sure this is not an issue. Are you using a factory new ink cartridge?
Please consider the following:
If you are using a refilled or third party cartridge that may well be your problem. Most manufacturers build logic into their products to prevent the use of “Other Equipment Manufactured” cartridges as well as re-filled cartridges.
They do this to prevent problems from contaminated inks causing problems with print quality or damaging the physical printhead.
If you are using factory new cartridges, then please call the manufacturers Technical Support for assistance with the warranty on the cartridges
Don

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1 Answer

Canon Pixma MP780


You get that message when the printhead goes bad. It's not the ink cartridges. You need a new printhead
# QY6-0049-000 around $60.00

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On this machine it means the printhead is bad. QY6-0049-000 around $40.00

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It is probably one of the cartridges. Usually, when the message "wrong cartridge" appears, the cartridge is faulty.

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Here is what I did and it now works just fine.I turned off the printer and unplugged the power cord, and unplugged it from my computer. I then removed all the ink cartriges and removed the print Head I got some rubbing alcohol put it on some toilet paper and wiped down the back and bottom of the print head.Plugged everything back in and It now works better then ever.

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