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MP500 ink tank cannot be recognized error U043

I replaced the magenta ink tank and got the message that the cartridge was no recognized so bought another new one, CANON OEM, and it still says U043 The following ink tank cannot be recognized I cannot scan either with it locked up like this and the stop/reset button does nothing when I hold it down for several seconds. HELP :( u150 the following ink tank cannot be recognised

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Re: MP500 ink tank cannot be recognized error U043

I have a canon mp510 pixma same message U043 and a u150 fault.
I cant see any chip to replace and have replaced my original cartridges with a non branded cheaper type, this might be why. Does this make a difference or is this the same problem occurring with replacement canon cartridges as well.

Dont want to buy genuine ones if its not going to make any difference.

Anyone who can help me would be appreciated

Posted on Jun 25, 2008

Re: MP500 ink tank cannot be recognized error U043

I had the same problem with a Canon Pixma MP800 here is the procedure I went through to fix it. I removed the new cartridge then taking a clean tissue I gently wiped the front of the ink well were the the electronic chip in the cartridge meets the ink head. I replaced the new ink cartridge and the red light came on. I closed the cover the printer returned to normal working mode!

Posted on Apr 01, 2008

Re: MP500 ink tank cannot be recognized error U043

I have the same problem with a Cannon pixma MP610 wich costed me more than 200 euros in Romania, it worked for 1 month, then gives me the same message , it seems nothing fixes it...Canon i thought something else about you till yesterday!

Posted on Feb 26, 2008

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Canon mg5350s u043 error

Easiest solution is to buy an original cartridge, any colour and this will normally reset, otherwise your Google the problem and you should find a solution to disable this function, but chaeck reguarly as you wont get a warning that the cartridge is empty after you disable the function

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I get the U043 error on my Magenta. Cartridge is set properly.

Ink tank not installed.
U043 (Applicable ink tank
The following ink tank
cannot be recognized.
Install the applicable ink tank(s) properly,
and confirm that the LED's of all the ink
tanks light red.

Sep 13, 2009 | Canon PIXMA MP600 all-In-One InkJet...

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Alarm light is lit -

Ok my printer is giving me the U140 message saying that ink tank cannot be recognized. The new ink tank is Cannon (not a off brand or refill). i think it is a problem with the chip reader port inside the printer not the ink tank chip. I feel this way because if you switch around the yellow and black 8 tanks, the printer accepts them without error.. soo if it was the ink cartridge i could be able to swap the black with the magenta and it should read it.

Sep 08, 2008 | Canon Pixma MP500 All-In-One InkJet...

2 Answers

MP500 ink tank cannot be recognized error U043

I had the same problem. My mp630 is also only 4 months old. I replaced all colour ink cartrdiges(inc black), but was only able to release the function for detecting the ink levels for magenta and cyan. Yellow and black then started giving error message U043, with them alternating between working, but never working at the same time. Getting them all clicked in with the lights glowing red does not solve the problem, as once the printer cover is closed, the same error message turns up. The only thing that worked for me is moving the chip slightly out of alignment, by pushing the sliding chip holder, and I only had to do this twice before they all started working and the printer was unlocked.

Jul 30, 2008 | Canon PIXMA MP600 all-In-One InkJet...

1 Answer

Error U043 - Ink Tank Cannot be recognized

Try to open and close the main cover a bit, ... ink recognition will start and may solve the probleme ...
... otherwise remove the cartridge and clean the chip contacts e.g. with spirit
Maybe also pressing the stop/reset-button for >10s will also help to continue printing, but in this case the fill level of the cartridge will no longer be shown

Apr 26, 2008 | Canon PIXMA MP830 All-In-One InkJet...

2 Answers

MP500 ink tank cannot be recognized error U043

Same problem - two solutions I found helped me work out mine. One said contacts needed to be cleaned and it worked to use a Q-tip and alcohol or just click it in position several times until it recognizes the cartridge - this may work. Another said that they got it to work by installing a brand new cartridge - cool, but I have one full of ink it won't recognize. So I pulled the little circuit board off a used cartridge (like you need to do with some refills) and put it on the cartridge that it wouldn't recogrnize - works great. Still haven't figured out how to get it to acknowledge ink levels though. Canon really should be more consumer friendly since these problems seem to be intended to compel the use of proprietary cartridges.

Dec 27, 2007 | Canon PIXMA MP600 all-In-One InkJet...

1 Answer

Replacement Ink Gone WRong

Cartridge world gives you 90 days to return the ink tank. Take it back and get a replacement!

Nov 17, 2007 | Canon Pixma MP500 All-In-One InkJet...

20 Answers

MP500 ink tank cannot be recognized error U043

I had the u043 problem on the blue cartridge on my mp830.

I was using non-original replacement inks but re-using the chips from the originals - replacing the blue cartridge would cause it randomly work but i then noticed the chip holder was not centred so I realigned it and hey presto! the problem was solved first time.


Sep 17, 2007 | Canon Pixma MP500 All-In-One InkJet...

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