topic Re: Printer error message: UO43 ink not recognized in Desktop Inkjet Printers

PIXMA MX870 error message: UO43 ink not recognized

cmgeorgia — Fri, 28 Oct 2022 14:49:18 GMT

I have a pixma mx870 all-in-one printer. I just replaced my ink cartridges using new genuine canon ink cartridges. I am receiving an lcd error message: UO43 ink cartridge could not be recognized. I tried unplugging the printer for 10 minutes. Any suggestions?

Re: Printer error message: UO43 ink not recognized

Michael — Wed, 03 Apr 2013 12:52:59 GMT

Hello cmgeorgia.

We would like some additional information to try and resolve the error. Please document which ink tank is mentioned in the error as unrecognized.

Next, please open the cover and wait for the tanks to stop at the center. Once there, document the exact label of each ink tank from left to right.

Re: Printer error message: UO43 ink not recognized

fayjohnson — Mon, 22 Apr 2013 02:06:29 GMT

I am experiencing the same problem. I took out the empty color cartridges because I only use it on black and threw them away. I have put one of the large black cartridges 220 in the large space. All I get is the error message UO43 and the alarm goes off "Cartridge not recognized" Very frustrating HELP I HAVE NO PRINTER. Thank you.

Re: Printer error message: UO43 ink not recognized

Karl1 — Mon, 22 Apr 2013 03:23:48 GMT

Hi fayjohnson,

Unfortunately the pritner will not work in this manner. Since the printer is considered a color printer and not a monochrome printer, it must have the color and black ink both. If the printer detects that a color is in place of a black or vice versa it will give this error until you put in the appropriate ink tank.

Re: Printer error message: UO43 ink not recognized

fayjohnson — Mon, 22 Apr 2013 04:12:41 GMT

THE BLACK IS IN THE CORRECT SLOT. iT IS JUST THAT THE COLOR TANKS ARE NO LONGER PRESENT. aRE YOU SAYING THAT THERE HAVE TO BE COLOR TANKS IN THERE FOR THE BLACK TO WORK? whAT A WASTE OF MONEY,

Re: Printer error message: UO43 ink not recognized

jcastron — Tue, 30 Sep 2014 02:39:21 GMT

I have same problem on MX892, inserted refilled cartridges
( small black on left and yellow on far right) red light comes on when installed,close cover and get not recognized message. Open cover and those two lights are off?? Brought back to Cosco, told them,they reset them,tried again at home...still NG????

Re: Printer error message: UO43 ink not recognized

Ramona — Tue, 14 Oct 2014 08:16:02 GMT

Hi fayjohnson,

Yes, the printer requires that all ink tanks be installed in their correct slots in order for the printer to work, even if some of the ink tanks are low or out of ink.

Re: Printer error message: UO43 ink not recognized

Ramona — Tue, 14 Oct 2014 08:19:42 GMT

Hi jcastron,

Sometimes during the ink refill process, the original ink tanks can be damaged and not function properly once reinstalled in the printer. In these instances, there is not a way that we can force the printer to recognize the ink tanks; they will need to be replaced. Replacing the ink tanks with new Canon genuine ink tanks should resolve the issue you are experiencing.

This didn't answer your question or issue? Please call or email us at one of the methods on the Contact Us page for further assistance.

Re: Printer error message: UO43 ink not recognized

mhan — Fri, 11 Mar 2016 11:04:58 GMT

Does this mean that the printer as a whole does not work without ink cartridges installed? - meaning the scanner will not work either? I have a MP630, getting the same error message with no ink cartridges installed - is there a way to override this error message and use the scanner?

best

Mhan

@Ramona wrote:
Hi fayjohnson,

Yes, the printer requires that all ink tanks be installed in their correct slots in order for the printer to work, even if some of the ink tanks are low or out of ink.

Re: Printer error message: UO43 ink not recognized

matchalax — Tue, 23 Jun 2020 14:07:19 GMT

Hi. My Printer Model No. (MP628) is also facing same issue but I didn't put any printer cartridge inside printer. Might I know need to put printer catridge in according to power on the printer?

Re: Printer error message: UO43 ink not recognized

Porcha — Tue, 23 Jun 2020 14:09:10 GMT

Hi,

Welcome to The Canon Forums, and thank you for your inquiry!

We appreciate your participation, however, we need to let you know that the Canon Forum is hosted and moderated within the United States by Canon USA. We are only able to provide support for Canon products manufactured for and used within the US market.

If you live outside the United States, to go: https://global.canon and select your country or region for your support needs.

Feel free to discuss Canon products sold outside of the United States, but please be aware that you will not receive support directly from Canon USA.

Re: Printer error message: UO43 ink not recognized

bcarlson — Sat, 30 Jan 2021 05:27:24 GMT

Canon error messages driving me insane. Big black ink ran out so I replaced the cartridge, then printer says it cannot recognize Magenta, so I replaced that, then cannot recognize Cyan .... replaced that one 3 times. It worked great until ink ran low on Black ... now serves as a doorstop. Printhead was working great until black ink ran low, now nothing works. How to fix this?

Re: Printer error message: UO43 ink not recognized

mbeck1190 — Thu, 27 Oct 2022 00:18:51 GMT

I am having the same issue replaced cartridge with a genuine canon cartridge getting the same error. The cartridge I am getting the error on is the gray cartridge. The order of the cartridges left to right are: M226, BK226, GY226, PGBK225,C226, Y226.

Re: Printer error message: UO43 ink not recognized

mbeck1190 — Thu, 27 Oct 2022 00:19:54 GMT

I have tried replacing the cartridge and it did not resolve the issue.