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Call to Arms for the dreaded U052 Wrong Printhead Error


This is a "call to arms" for all of you Canon customers who have had this problem and have had their printers disabled because of it.  Please respond with the model of your printer and if you were able to fix it, what you did to fix it. 


We need to put pressure on Canon to respond this product defect.  It appears to be bad firmware that does not allow the user to override the problem and to continue to use the printer even in a degraded mode.  From my investigations the problem is NOT a printhead issue - no way one can be printing fine and then have this error alert without having changed the printhead or ink cartridges!


Canon, PLEASE take this issue seriously and provide a solution across the affected models.  If nothing else there should be a trade-in allowance for those printers that have been affected by this product defect.


I have had many Canon printers because they have superior functional specifications. I want to be able to continue using Canon products but only if I can have confidence that this product defect will not destroy my investment.


If Canon is unresponsive our next step should be to aggressively publisize this product defect on social media and on major product vendor outlet sites as negatives reviews.


Forum Users, please reply with your affected model number(s) and with details of any succdessful fix procedure.

1,478 REPLIES 1,478


My Cannon Pixma MX700 just started showing the dreaded U052 Wrong Printhead Error.  Everything was working fine for years, and then all of a sudden this error message appeared.  I wish there was a way to 'reboot' the equipment so it would go back to the original settings.  I'm sure the printhead is fine.


I agree that there must be a glitch in the equipment somewhere.  This was a fairly expensive piece of equipment, and I need to it work for my business.



ann_betten: If you send a print job to the printer as soon as you switch it on, before it has a chance to do its head-cleaning routine, it will do this one job before failing again. With my printer, the failure eventually went away after a couple of months without me doing anything to it. But you could try wiggling the ribboon cable to the printhead, as in post number 1383.


Old Pixma MP500. Great printing, great features. Sudden error: wrong printhead installed. Cleaning did not help. Burnishing contacts did not help. Bought and installed a brand new printhead. Result: a different error message-  printhead not installed. Futzed with the white ribbon cable, nothing changed.


From reading the forum, it's obvious that Canon has not contributed a solution. Even if they did not know what's causing this (which seems -extremely- unlikely), it's hard to understand why they wouldn't chip in a few bucks to find out.


To me, this seems a likely example of typical corporate misbehavior. That kind of thing can generally be changed only if the company's reputation is directly affected by the issue.

I had the same issue with my MX922 and contacted CANON's support.
They were very understanding and offered me a free replacement head which arrived in a few days.
I replaced the head and nothing happened. The error still could not be cleared.
The printer is now sitting on the floor waiting to be dumped as electronic waste. I actually feel like hammering it Smiley Mad
I already purchased a new one, same model once I had an inventory of cartridges to be used, with a 4 yr extended warranty as I do not trust it will last that long.


won't go away on my mp600

Whelp,.....add me to the list of frustrated, disapointed and angry customers who have spent hours (and dollars!) attempting to resolve an issue that Canon clearly refuses to acknowlege.  My printer is barely 3 years old and minimally used.  I bought my printer from Canon because I naively believed it was solidly built and the company, cared about customer empathy and would stand behind it's products.


More than this obvious betrayal though is the disregard for the earth's resources as all of us dump these useless printers in the ewaste bins only to go out and purchase new printers (of course not from Canon).   


"At the heart of Canon's commitment to the world community is the belief that we are building a better world for future generations."   - Joe Adachi, Chairman and CEO, Canon U.S.A., Inc.

Really Joe ?  How are disposable printers helping the next generation?


Yes. me too! I have the Canon Mx925 and for no reason at all it the message popped up, wrong print head, when I hadn't even touched the print head, and this printer is quite new!!! Spent over £120 for it and this is what I get for my loyalty to Canon!!! GRRR

Maybe it's time to get the U.S. Attorney General involved.  This borders on criminal, in my opinion.

Canon MG7120 2yrs old. Hardly used. Was working fine then all of a sudden said print heads not aligned.

Same. My MG 7120 out of nowhere just threw a error 1403 at me. Its never had a problem before, never manhandled in fact never moved. Its 3 years old and babied. Its like a built in self destruct button was hit forcing me to buy a new printer. 😕

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