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.
Add me to the VERY long list of angry customers. Just received the same stupid error on my MG5200. Tried the suggested fix and it didn't work. It's mind boggling how Canon is ignoring this many complaints. Now I know what NOT to buy when replacing my printer.
Arrrggghhh, I thought it was because I was using compatible ink cartridges.... although they'd worked fine before. All of a sudden I get this error message, so I went out and spent $100 on Canon cartridges and still it won't work.. and now I see this stream and realize I'm not the only one. The sad thing is that Canon doesn't realize that each angry user is not just one lost sale, but a lifetime of sales net present value. SOOOO annoying. CANNOT believe it.
Me to, with the MX700. Yesterday I took the print head cartridge out, cleaned it with a rubbing alchohol and windex solution (1:4 mixture). Dried it all off, reinstalled, then succesfully printed a document I needed. I thought it was all good to go. However today I get the same UO52 message. Won't be buying any more Canon Copiers.
I found this blog that offered possible solutions... at least for some it worked... I hope it helps some of you.. as for me, still no luck. I found another blog that said to soak the printerhead in water and I did that as well but alas, the 052 error persists.
Most have been mentioned, but for the newer readers, these operations have worked for some users:
Solution 3b worked for my MP970.
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.
05/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
03/30/2023: New firmware updates are available.