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I have a PIXMA MX700 all in one and the factory ink tank (number 8 Magenta) that came with the printer is not recognized by the printer; causing an alarm situation that will not clear even when the tank is removed and replaced and it lights up, but when the cover lowers the same alarm U150 occurs. This has occurred several times with this tank since purchasing this printer but now it is alarming all the time and I can't print anything. The air hole isn't covered, and there is ink in the tank. The other tanks are not experiencing any problems. My Canon Quick Start Guide indicated to send you an email regarding this problem. Do you have any suggestions? Thanks, Liz McGwin

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  • Anonymous Jul 10, 2008

    magenta ink tank causes all the other ink tank lights to go out when it is pushed into place

  • msteedozier Jul 14, 2008

    this is the same problem that i am experiencing. I dont have time for this. please help. i need my printer. there is ink in the tank. same error u150.

  • smidy_us Aug 09, 2008

    I have the same issue with mine. I have bought a new replacement cartridge and the problem still persist.

  • Anonymous Aug 13, 2008

    I have the same problem. The first few times we could reset the cartridge then it would work. Now it just wont work at all. I went to the Canon Website and the website was down. Yikes...I can't recommend Canon printers.

  • Anonymous Jan 07, 2009

    I have the same U150 ERRORĀ 

  • hoberry Apr 07, 2009

    tried your suggestion and did what you said all the steps but when put back together the same U150 error took place.
    Any other suggestions

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I did not have this problem until after I moved, even though I was extremely careful and moved my MX700 in its original box in my car. The problem seems to be related to the small black tray that the ink tanks sit in. The tray has all the electrical contacts on the back and if it gets loose, it may not make good contact with the ink tank carrier.

Try reseating the black tray where the ink tanks sit. After removing all ink tanks, lift up the gray lever to the left of the tanks. This releases the black tray that the tanks sit in. Remove the tray (not the whole ink carrier, just the smaller black piece inside the carrier towards the back), check to make sure the contacts on the back are clean, then reseat the tray, pressing it firmly, but not forcefully, into place. Push the gray lever back down to lock the tray in place and reinstall the ink tanks.

Nick, the Computer Guy

Posted on Sep 20, 2008

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I keep getting a U150 ink tank cannot be recognized message. I check the ink tank, it is full. It lghts when I put it in, but when I put the cover down, the light goes out and is not recoginzed.


YES- the solution is I had been sold a cartridge for the printer that was same series 8 it needs but it was PM Magenta not a stand M for magenta so I found out form Canon - this is not a photo printer and it cannot use photo printer ink attached Canon's reply to confirm. Went back 3rd time got the M in the 8 series and all is good alarm light out and no error saying it cannot recognize the ink cartridge. YEAH!!!

Thank you for your reply.

Yes, the PIXMA MP530 only uses the regular ink tanks and not the photo
ones. This is the reason that it did not work correctly. Glad to hear
that everything is working now. If we can be of further assistance with
your PIXMA MP530, please let us know.

Thank you for choosing Canon.

Sincerely,

Devin
Technical Support Representative

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