U052 Printhead Problem MX870

[chdevers]

Stopped printing while in the middle of a big job with full ink tanks, then when turned back on, gave the dreaded U052 print head error message.  I have tried everything given by Canon to re-start the printer, nothing works.

It dawns on me that maybe my ink tank stopped feeding ink despite the tank being full- the vent hole might not have been open all the way to allow ink to pass through.

I'm wondering whether this could somehow mess up the printhead, maybe it needs ink to keep it cool during operation or something??

It's completely aggravating that it stopped as it has and now that prevents even the scanner or fax from working-- this seems like a bad design.

Does anyone know whether the print head can be messed up if the tank stops feeding ink while in the middle of a print job?

Thanks!  And if you know that answer, then what do you do to get printer working again??

Thanks!

[KBCANON]

Well crap. What if we are just now getting the error? Do we have to start up another class action suit???

[KBCANON]

www.canoninkjetprintersettlement.com isn't even a valid domain. It's for sale.

[Patick1]

Thanks for the advise. Didn't have to remove, just took out the inks and lifted the head via the leaver.

[Isac]

I can't believe Canon has let this go on. For those with the U052 error that can't be fixed, throw it over the counter at a Canon repair outlet and go buy another brand. Send Canon a clear and consise message that you are the customer!

[jocord]

I have the same problem .  Im so disappointed after reading commentst  that the printer head cant be fix anymore. this printer MX870 was intended for my son's thesis.So is our printer already considered a trash? ...so disappointed

[YvesBlanc]

I have 2 MPX 870 and a MPX500. Same problem (U052) occured on the three printers one after another in the time of about twelve monthes. None of Canon suggestion of procédures did fix the problem. The 3 out-of-ordre printers are in the backroom. I bought 2 brand new Epson printers (with ink tanks rather than ink cassettes). I am in the process of buying a third Epson printer. It's a shame as the Cannon did a great jobs for several years.

[BobbingBob]

Well, after a couple days of trying everything I've read about this problem I finally found a solution.

I took my MG5320 outside and set it on the curb. Next I went to my shed and got a sledge hammer. I put on a pair of safety glasses and beat Canon's crappy printer into a million pieces.

My only regret is I have a couple hundred dollars worth of OEM print cartridges that I will never use becaue Canon will never get another dime out of me so long as I live.

Bob

[Isac]

Nothing will change my friends. Canon don't care about yoiu or their printers. There gold is in the filthy price they charge for their ink. It's a wonder they don't give away new printers, they don't cost much to make in China. If everyone stopped buying their products, they would go broke - simple. No more Canon for me 🙂

[EinarB]

I have the same problem on my MP 810. Canon has (like Brother printer) programmed a chip in the motherboad to give you a false error message when you have printed a limited number of copies. Then they give you some false service tips, they do don't work, because the chip is programmed to give you a false error message, until you give up and buy a new printer. That's the business strategy of Canon.

[Isac]

If you can prove what you are claiming about the chip that's programmed to give this error, that would go a long way to helping a lot of people like myself, who have been treated with utter contempt by the Canon company.