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

2 Answers

Pixma mp500 each time i switch on printer the following txt comes up "uo71 more than one ink tank of the following colour is installed" i still have all the original ink tanks installed this is driving me crazy please help.

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  • ChristmaSnow Nov 07, 2007

    Im having the same trouble. My printer was working perfectly fine, no problems what so ever. I printed approx 10 pictures then all of a sudden on the printer U071 popped up reading more then one ink tank of the follow color is installed and it shows the blue one. However I only have one blue on installed and nothing changed prior to this error report, I had just printed pictures. Ink wells are all full and Ive been stumped ever since. Nothing else will work either; cant photo copy or scan this report keeps coming up. When I take out the blue, since system shows more then one blue, an error report pops up that there isnt any blue. Its driving me crazy! Please help!!

  • Pamela Warren Nov 28, 2007

    I have same problem original ink tanks a full have reset, reinput and still same error and it is on the magneta color

  • Anonymous Dec 09, 2007

    Yes, I have the same problem. My screen says that I have two blacks installed in the same place and the alarm light is on. I just tried taking out the cartridges and reinserting them and of course turning off the printer and computer and turning them back on.

  • Anonymous Dec 10, 2007

    Me four. I hate this thing. Did anyone figure out an answer? Thanks!

  • Anonymous Dec 12, 2007

    Me five. It tells me I have two black cartridges (duh) and won't print and when I remove PGI-5BK it tells me it doesn't recognize the cartridge in the empty space that PGI-5BK occupied (and won't print).

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2 Answers

I had the same problem. Apparently, Canon released a "bad batch" of these ink cartridges which causes the error message. It has something to do with the chip on the front of the cartridges.

Contact Canon and encourage them to remove these chips from future cartridges... and stop the price gouging of their customers.

Posted on Dec 12, 2007

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  • Master
  • 2,985 Answers

Canon Technical Support team will be able to help here. This seem a common problem with the printer firmware.

Posted on Jul 09, 2007

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1 Answer

UO43 error there is no ink cartridge there, but when there is an ink catridge UO71 it says more than one ink cartridge


Hi there

For troubleshooting purposes,
Perform the following:

1. Open the printer and remove all ink tanks.

2. Insert a single ink tank in the printer then close the cover.

3. Confirm whether the printer recognizes the installed tank
properly. If it does, it will indicate it does not detect the other ink tanks, as
they are not currently installed in the printer.

4. Repeat steps 1-3 with another ink tank.

5. If the printer at any time indicates two of the same ink tanks are
installed, the cause will be the last tank installed. For example, if
you inserted an ink tank earlier, and you later inserted another ink
tank, and it said two of the same inks were installed, the cause of
the issue is the last ink tank.



Please come back and just gave a vote, it will gave me some satisfaction to know am helping some one so I will keep on helping.
All The Best: Pineworks

Mar 08, 2010 | Canon Pixma MP500 All-In-One InkJet...

1 Answer

ERR0R U071 MORE THAN 1 INK TANK OF THE FOLLOWING COLOUR IS INSTALLED. (CANNON PIXMA MP500)


Hi there

For troubleshooting purposes,
Perform the following:

1. Open the printer and remove all ink tanks.

2. Insert a single ink tank in the printer then close the cover.

3. Confirm whether the printer recognizes the installed tank
properly. If it does, it will indicate it does not detect the other ink tanks, as
they are not currently installed in the printer.

4. Repeat steps 1-3 with another ink tank.

5. If the printer at any time indicates two of the same ink tanks are
installed, the cause will be the last tank installed. For example, if
you inserted an ink tank earlier, and you later inserted another ink
tank, and it said two of the same inks were installed, the cause of
the issue is the last ink tank.



Please come back and just gave a vote, it will gave me some satisfaction to know am helping some one so I will keep on helping.
All The Best: Pineworks

Feb 10, 2010 | Canon Pixma MP500 All-In-One InkJet...

2 Answers

Showing Check Ink U051 COL. Have removed the


Hi there

For troubleshooting purposes,
Perform the following:

1. Open the printer and remove all ink tanks.

2. Insert a single ink tank in the printer then close the cover.

3. Confirm whether the printer recognizes the installed tank
properly. If it does, it will indicate it does not detect the other ink tanks, as
they are not currently installed in the printer.

4. Repeat steps 1-3 with another ink tank.

5. If the printer at any time indicates two of the same ink tanks are
installed, the cause will be the last tank installed. For example, if
you inserted an ink tank earlier, and you later inserted another ink
tank, and it said two of the same inks were installed, the cause of
the issue is the last ink tank.



Please come back and just gave a vote, it will gave me some satisfaction to know am helping some one so I will keep on helping.
All The Best: Pineworks

Feb 10, 2010 | Canon PIXMA MX310 All-In-One Printer

2 Answers

I have purchased a ''Virtually Mint'' Canon Pixma ip90 printer however, when I try to print a document a message pops up stating ''the following ink tank is not installed: black ink tank, colour ink tank....


Hi there you can try.
Following step by step resetting canon Pixma iP90 :
  • Before resetting printer canon iP90, start with printer power off.
  • Press resume button coincide with power button.
  • While pressing power button, release resume button.
  • Press resume button 2 times and then release both button
  • Green LED indicator will blinking and then stopped blinking.
  • When the Power LED lights in green, press resume button 4 times.
  • Press power button and the printer power will off. Otherwise off, depress again power button.
  • And the turn on the printer again, your printer canon iP90 should be response as normal.
All I ask is please come back and just gave a vote, it will gave me some satisfaction to know am helping some one so I will keep on helping.
All The Best: Pineworks

Jan 21, 2010 | Canon PIXMA iP90 Mobile Printer

1 Answer

Getting a UO71 code saying more than one ink tank is installed. The ink tank is full


Thats a defective cartridge, you need to replace the one whose light is out when they come to the center. Canon will replace defective cartridges for 30 days after purchase.

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1 Answer

Alarm: UO71 more that none ink tank...


That means that you either have a defective ink tank, or there are two of the same color installed, check the label for the inks, the one that flashes is the one with a problem.

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Alarm light is on and it won't print


I get the same error message. I pull out the yellow cartridge and put it back in. It will print a couple of times and I get the same message. Need a permanent fix.

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3 Answers

UO71 More than one ink tank of the follwoing color is installed/U140 The following ink tank cannot be recognized


i had the same problem and when i checked inside to see why it was not working with the cyan i saw that a sensor was the problem... it had fallen out. check it out and let me know if it is the same with yours.

May 15, 2008 | Canon Pixma MP500 All-In-One InkJet...

6 Answers

UO71 More than one ink tank of the follwoing color is installed/U140 The following ink tank cannot be recognized


Had the same error after replacing my black ink om my MP830.(UO71) I Put some Methylated Spirits on a cotton tip and gently cleaned the cartridge chip (allow it to air dry). This fixed my problem!

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