Question about Canon Pixma MP500 All-In-One InkJet Printer

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Pixma 500 - Ink Tank 'Not Recognized"

All of a sudden my canon pixma 500 displayed a message that the pink "ink tank can not be recognized". I tried to change out the tank but the message is still there. Both tanks were full. What can I do? Thanks

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  • Babiblonde Feb 23, 2009

    I still have the smae probem as Bradrock's "Pixma500 - Ink Tank Not Recognized and no solution works. Then money I have spent I could buy a new and better All in one.

  • Anonymous Feb 25, 2009

    I am getting the message on my Pixma MP500 that it cannot read the large black cartridge. I tried billviek's idea and took out all of the cartridges, cleaned the area with rubbing alcohol and q-tips. However the problem persisted.
    An FYI: cartridge is an Office Max store brand. I think that may be the issue. I plan to return it and get a Cannon cartridge.

  • Anonymous Apr 27, 2009

    mine syas the same thing



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Carefully remove the tanks from the print head cartridge. use a q-tip lightly soaked in isopropyl alcohol, or use a q-tip paired with an alcohol prep pad from a first aid kit.

gently rub the rubber seating areas for each tank, removing the dried ink from the rubber seat. swab the soaked q-tip, or use the q-tip to gently press the alcohol prep pad into the rubber stopper. use a different spot on the q-tip or pad for each one.

check the print head for ink stains on the black plastic, clean those as well.

Use canned air to dry the stoppers, replace the tanks, and check status. Print a test page and check results.

If you do not print many items, you can avoid the situation by printing a test page every once in a while to keep the contacts clear. Also, run the program to clean the print heads occasionally, and always turn the printer power off at the printer (that seats the tanks down on the stopper, helping to prevent the contact getting plugged by dry ink.

Posted on Apr 07, 2008

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When you refill the tanks yourself- it will always say tank is empty. Just ignore it and check often manually.

Posted on Apr 24, 2007


I had the same problem with my black tank on an MP500. I changed the tank and the problem went away. In my situation the problem showed up after using half of the ink. I will send this tank back to Canon since it does not appear to be a printer problem. The instructions say to be careful not to touch the electrical contacts on the small circuit board when opening the tank packaging. There appears to be a chip on the back side of the circuit board, maybe touching the contacts can kill the chip?

Posted on Apr 07, 2007

Canon online help says to remove the tank and make sure the orange tape has been properly removed, leaving an "L" shape and a notch just above the number 8 on the edge of the tank. Check yours, but mine was fine and is still not recognized. My model is IP4200.

Posted on Mar 03, 2007

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Posted on Jan 02, 2017

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