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.
U052 Incorrect Printhead TEMPORARY Bypass
Canon MX700 printer printhead diagram
NOTE: Scroll down to “Reseating the Print Head” to see the print head
diagrams of print head nozzles, electrical contacts, ink supply ports.
1. I have successfully TEMPORARILY bypassed the U052 incorrect print
head error on my 11 year old Canon MX700 printer by thoroughly
cleaning the print head as follows. The U052 error REOCCURS after
printing on my printer and with the passage of time (i.e. a few days).
I believe I saw this fix on the Canon Community Forum.
a. Get a flat bottom container and fill it with a 1/4 inch of warm water
and put your print head with the print head nozzles pointed down
in the water. See print head diagram web link above.
b. Drip warm water onto the ink supply ports too.
See print head diagram web link above.
c. Jiggle the container to jostle the print head to get the
d. Repeat steps a, b & c until your water remains clear
(i.e. no ink remaining).
e. I dried my print head with the following: paper towels,
setting it under a desk lamp, air drying overnight.
2. With a clean print head I do not get the U052 error.
3. After printing on my printer a dozen color pages successfully-
1 week later I get the U052 error. Cleaning the print head
per note# 1 above and the U052 error goes away.
Other notes include:
1. I cleaned the print head gold contacts & interfacing pins with
CRC Electronics Cleaner & Q-tip. This cleaner is available
from an Auto Parts store. This cleaning did not resolve the
2. Previously cleaned the print head gold contacts with a pencil
eraser which resolved my U052 error. However, a few days
later the U052 error came back.
Would love to know if there is any resolution to all of these printer complaints. I, personally, would love some answers, Seems like something is obviously defective for everyone to have the same problems.
Error 1403, MX922- "The type of print head is incorrect. Install the correct print head." Many post are over 5 years old. It's 2019 and still experiencing same problems.
i just want to thank all those in the community that offered fixes. I have about $100 in ink for my MX922 so I had to try, but alas nothing worked.
Likewise, I would like to thank Canon for their silence on the matter. That made it an easy decision to buy an Epson ecotank ET-3750. It included a bathtub of ink, setup and software installation were a breeze, and the first pages just rolled out of it. No guarantees this experience will be better, I realize that. But I'm happy to give it a try.
12/05/2023: New firmware updates are available.
09/26/2023: New firmware updates are available.
08/18/2023: Canon EOS R5 C training series is released.
07/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
03/30/2023: New firmware updates are available.