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

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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 :(

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  • Shonabby Nov 09, 2007

    Mp510 Error U150. Same thing. Printer is frozen, but it is not a new cartridge. I have used it for a month (it is still 3/4 full), so obviously tape is off and cartridge as well as printer had been working. Suddenly stopped. Took out cartridge and placed it back in carefully, still frozen.

  • jamiehelp Nov 14, 2007

    I have problems with Canon MP950 of "2 cartridges installed" or "cartridge not recognized". Is there a firmware upgrade fix for this printer

  • Anonymous Dec 06, 2007

    I have had this problem since the first week I bought the printer. It's always the Cyan cartridge. I have never used anything but genuine cartridges. I can't print anything because of the message and all the cartridges are only half empty. I will NEVER buy another Canon printer. I've done everything everyone else has done. Throwing away a half empty cartridge and buying a new one is the only thing I've been able to do to get it to work again.

  • nekuee Dec 08, 2007

    After 2 weeks i have bought this mp510 this error happned too

    i wish someone from canon co would come here and solve it for us!

  • nekuee Dec 08, 2007

    The MP510 seems not to recognising cartridges...firstly the cyan in my new printer couldn't be recognised unless loosened & then replaced. This happened several times until it refused to be recognised at all. So we bought a new cyan cartridge, which has worked fine for 2 weeks...BUT now the yellow can't be recognised. What's happening?
    If one cartridge can't be recognised the whole machine wont work, which is very inconvenient when we mainly need only black for documents

  • dalonz1294 Dec 22, 2007

    I replaced the yellow 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

  • Anonymous Jan 05, 2008

    I have the same problem. I need to scan, but won't even let me scan since the ink tank cannot be recognized. What does scanning have to do with the ink tank. It's been replaced and still having the same problem. I am so frustrated. How many times do I have to buy a new cartridge. Any help would be appreciated.

  • Anonymous Feb 08, 2008

    (Austria) I have the same problem. I've bought the MP 510 last sempter. I need to scan, but won't even let me scan
    since the ink tank cannot be recognized. It's been replaced and still having the same problem.

  • Anonymous Feb 15, 2008

    This U150 error happens with 1 in 5 inks that I buy for my PIXMA MP500. Really sick of wasting my money on this crap...any help woudl be good.



  • Anonymous Feb 20, 2008

    2 weeks old Canon pixma MP510 and the black is saying error U150 unrecognized cartridge, I have printed one single paper with the device so far and scanned 4 photos. :) Have to call to reseller warranty service and ask what to do, I'm quite pissed with this piece of crap.. Glad it's not in my personal use, it's girlfriends. ;)

  • Anonymous Feb 29, 2008

    U043 The following ink tank cannot be recognized :yellow and cyan

  • jlcanon Mar 26, 2008

    I have the CANON PIXMA iP4500 with this problem, the middle cartridge, yellow, is often not recognized. And then sometimes, after the irritating switching off and on, or using the cleaning process, it is recognized again. After that all is fine and looking good but next day it might get the same problem again. Its not the cartridge, it is almost full, not dried out or anything. When the error goed away all works fine.


  • Anonymous Apr 28, 2008

    This sucks!...

  • Anonymous Jun 23, 2008

    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.

  • Ed Sep 06, 2008

    As i've stated in another post I'm having this same problem with my Cannon PIXMA6700D printer. I just wanted to add to this post to inform others like all of you that I contacted Cannons tech support via e-mail. While their response was fast it was of no help at all. So after writing back they are now going to send me a replacement Magenta ink tank. I'm not sure this going to solve the problem at all but at least it's worth a shot for you to contact them. Plus I just also discovered after reading postings on here that Epson printers are giving out the same error messages as the Cannon printers. So is it the printers or is it the ink tanks themselves that are faulty? I'll let you all know if the replacemt ink tank solved my problem but with a waiting time of 2-5 business days that won't be until sometime late next week. In the mean time like the rest of you I have no printer.

  • jonlg Nov 02, 2008

    brand new mp510, same problem (U043) -- ink tank cannot be recognized -- on the black tank. The chip/sensors and red lights look cool, but I'm discouraged seeing all the people who have had this problem. I like Canon, had a Multipass F30 for many years and never had trouble with the ink (at least when using Canon), but it didn't have this "fancy" system.



  • longueuilp Dec 28, 2008

    I am also having the same problem.  I have not been able to solve this issue.  I am glad to read I am not the only one.  I will try contacting tech support.  Good luck everyone!

  • jinajae Jan 28, 2009

    FYI - I just got the same error message for the first time, and I know that it's the printer because the cartridge has been there for at least a month now and this is the first time the message has appeared. It has been very cold here lately...

  • Anonymous May 17, 2009


    I habe the same problem with the U043 error message. I changed the refilled color ink cartridges and got red lights on two of them. I could still print. The black went empty and when I replaced this cartridge with one bought from Walmart I got the U043 message. I the bought an original cartridge kit and replaced all the cartridges. Now all color lights are on and the Black is not recognized. I cleaned the contacts and in desperation changed the chip with the chip from the cartridge that worked. Still no luck. I have a dead printer and don't know where to turn. I'm starting to suspect that the printer manufacturers are program the printer to fail some time after refilled ink cartridges are used as this is the second printer that failed for me in a similar fashion. The first printer was a Hp.



  • Ellik
    Ellik Dec 18, 2013

    Listen guys, the issue is that most of the times you are using non-original ink heads.

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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.

:)

Posted on May 14, 2008

  • Ellik
    Ellik Dec 18, 2013

    The problem most of the times is that you try to put a new (full) non-original ink head. The solution is simple! Replace the micro-chips! Take the one of the original Canon old (empty) ink head (pop it out carefully with a pocket knife or a very small screw driver and put it in the new (full, non-original) ink head! BOOOOM - it works! Red LED blinks and all is fine!

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I know this is going to sound foolish or mundane. Did you remove the plastic tape of the back of the ink cartridge? The back of the ink cartridge provides data both to the printer and your computer. If the plastic tape is still there it will block this from happening and register as a error.

Posted on Sep 21, 2007

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Had the problem of transferring the microchip and getting the "failure to recognize" message. Read everything but could NOT get it to work. Finally I compared two cartridges directly and noticed the not working replacement had its chip slightly higher than the good one. It turns out there are two positions where the chip sits flat and you need sharp eyes to pick it. When I relocated the chip, bingo, everything worked.
Mallee

Posted on Feb 05, 2010

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This is not really a solution as much as a way to temporarily fix the problem. If, like me, you get a U043 message or a U150 message and the cartridge is new or nearly new and still filled , here is what you can do. Go out and buy another ink cartridge, replace the one that will not recognize, place the faulty but still filled cartridge back in the packaging, take your receipt and return the cartridge. If they ask you if there was a problem with the product, tell them, it would not recognize. Like I said not really a solution but at least it will force Canon to pay for their mistake without you having to.

Posted on Dec 21, 2009

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Here is how I fixed the message. I had planned on only using black ink because I was too cheap to buy colored ink also. I removed all of the cartridges and only put in the new black ones. Here was my error message saying that it could not read my new cartridges. For some reason or another, I decided to put all of the cartridges in, including the empty color cartridges..and now it is reading. This may be the case for you, it may not. BUT KEEP YOUR EMPTY COLOR OR BLACK CARTRIDGES JUST IN CASE YOU NEED ALL OF THEM TO MAKE IT WORK!

Posted on Aug 28, 2009

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My mp600 was struck down today (was intermittently doing it, but now permanently) with the Yellow tank doing Error 150.

Phoned Canon (In Australia)

They said they would replace the faulty cartirdge.

Send them (in Australia only) to

Canon Australia Pty LTD
Attn: CIPG
PO BOX 313
North Ryde NSW 1670

Posted on Mar 13, 2008

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I have the same problem. I have replaced the cartridge with a new one. That works but it really bothers me to throw away a cartridge that's stil 3/4 full.

The other solution is to open up the top of the printer. When the carriage goes to the change cartridge position reset the bad cartridge. Then you can print and scan. Its only a work around not a final solution but at least you can print and scan then.

Maybe if enough of us return the bad cartridges to the store for a replacement Canon will get the message.

stevebeamer

Posted on Feb 22, 2008

  • stevebeamer Feb 22, 2008

    That is reseat the bad cartridge (unhook it pull it up and push it back into position).



    stevebeamer

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Same problem, with large black ink cartridge a couple years ago. Called Canon the new cartridge did not recognize so I tried another new one and it worked. They apologized and sent me replacement cartridge for free.
Then last week had same problem so I figured printer going bad do bought a new b/w Canon printer on sale and it works great.
Decided to call Canon and they had me try the "Hold Reset" technique but did not work. They then had me put my old cartridge and it still said "not recognized". So Canon agreed printer is likely bad. I asked them what they could do for me since I just spent $50 for a set of cartridges I now can't use. They offered a new cartridge for my new printer and are sending to me.
I have had good experience with Canon. The MP500 lasted me 5 years.

Posted on Nov 24, 2012

Be careful how you seat the chip onto the new cartridge. Compare it with another that works and make sure it is in identical position. Takes a bit of trial and error, but it's worth it. I pay around 25% for the fake cartridges, the quality of the printing (photos and CD) are beautiful, but you have the hassle of the printer being quite recalcitrant at times

Posted on Oct 29, 2008

Hi, my mp500 does the same thing randomly, i just open the cover and close it again and it works fine until you want to print something again.

Posted on Jul 03, 2008

There is a little chip on the front of the original canon ink tank. take this off and stick it onto the "compatible" cartridge in the same place. It wont recognise it as a full cartridge, but it will stop the printer from locking up

Posted on Jun 24, 2008

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Similar problem with my MP5000, just out of its 12 month guarantee. Contacted Canon Tech Support, basically they were not inetrested. Suggested changing ink cartridges, if that did not sort problem to contact a service centre in Luton. Service Centre in Luton want £70 plus, to repair printer, this exlcudes printer head if it needs replacement.
Better off buying a "New" printer, certainly would cost less and at least you have a guarantee, for what it's worth.

Posted on Mar 26, 2008

After exactly one year of service, this damn Cannon MP530 is doing the same thing. With a brand new Cannon ink cartridge the red ink light won't go on and you can't even print in black only!

Heading to Epson.

Posted on Dec 23, 2007

After reading this I realised that I'd forgotton to take the mini circuit board from the old ink cart and put it onto the new ink cart.

Posted on Dec 21, 2007

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Posted on May 16, 2008

I had the same problem but luckily I still had my old empty ink cartridge. I took the chip off the from of it and replaced the bad chip with it on the new ink cartridge. I just took a pocket knife and popped it right off and then snapped it on the new one. This worked fine.

If you dont happen to have an old ink cartridge that worked good then I would take it back to the store and tell them the chip on it is defective.

Posted on Mar 05, 2008

  • blumarbl Nov 20, 2011

    If you are using third-party cartridges, the chip may be out of position. Try sliding from side to side until it is centered, and re-inserting the cartridge. That worked for me.

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I have the same problem intermitantly. I have replaced the cartridge. That works, but It really bothers me to replace a cartridge that is still 3/4 full.

So what I do is to open up the top of the printer. When the carriage goes to the change cartridge position I lift the bad cartridge up and reseat it.

This is only a work around. It doesn't ultimately fix the problem but you can print and scan. Maybe if enough of us take the cartridges back to the store for a replacement Canon would get the message.

stevebeamer

Posted on Feb 22, 2008

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

When you move the chip from the empty branded ink cartridge onto the cheaper new unbranded one, also check to make sure the chip is rotated and inserted the right way. If you have multiple ink cartridges check the chip orientation on an adjacent chip cartridge. I had this same error when I did not place the chip in the right orientation and then it worked,

Posted on Oct 15, 2007

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IP6700D - same ****! - 400.00 printer!

Posted on May 16, 2008

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SOURCE: 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.

Posted on Sep 04, 2008

SOURCE: 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

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