topic Re: Could not perform correction -- message -- MF644Cdw in Office Printers

Could not perform correction -- message -- MF644Cdw

charliemullin — Thu, 24 Sep 2020 14:40:30 GMT

What does this message mean and why don't the functions work?

Could not perform correction

I get this message after running either of these functions:

Correct Print Color Mismatch

Auto Adjust Gradation

What is preventing these functions from working? (Does it simply mean there is nothing to correct?)

How can I fix the problem?

Re: Could not perform correction -- message -- MF644Cdw

charliemullin — Sun, 27 Sep 2020 00:44:09 GMT

Here are the steps from the documentation to perform a Full Adjust:

Select <Menu> in the Home screen. Home Screen

Select <Adjustment/Maintenance> <Adjust Image Quality> <Auto Adjust Gradation>.

Select <Full Adjust>.

Check that the size and type of paper displayed on the screen is loaded in the machine, and select <OK>.

Confirm the procedure, and select <Start>.

An adjustment image is printed.

In Step 5, an adjustment image is supposed to print. But nothing is printed. Instead, the console says that It could not perform correction.

Does anyone know how to fix this? My black text is being printed in grey, which did NOT used to happen. The "grey" problem began after I had to initialize the machnie.

Is there some other setting I need to adjust?

I've tried everyting I could think of, except replacing the black cartridge, which still has 20%.

Any insight is most appreciated.

Re: Could not perform correction -- message -- MF644Cdw

Audrey — Wed, 07 Oct 2020 16:54:55 GMT

Hi,

Welcome to The Canon Forums!

Please remove and reset toner cartridges. If the message continues, please replace with Canon Genuine Toner Cartridges.

If you continue to have difficulties, please contact our support group using the following link:

http://Canon.us/ContactLI

Did this answer your question? Please click the Accept as Solution button so that others may find the answer as well.

Re: Could not perform correction -- message -- MF644Cdw

osya_bender — Fri, 20 Nov 2020 21:34:58 GMT

I have the same issue and the phone support is impossible to reach.

Is there anything I can try to resolve this?

Re: Could not perform correction -- message -- MF644Cdw

osya_bender — Fri, 20 Nov 2020 21:45:08 GMT

I got it.

You need to make suyre that your paper settings match the ones displaied duren the gradation adjustment screen prompt.

Select plain 1 in the paper settings basically

Re: Could not perform correction -- message -- MF644Cdw

CJAM — Thu, 21 Apr 2022 01:28:34 GMT

This information is invalid on two counts: first, you do not explain what you mean by "reset" for the cartridges and that is also not explained in the downloadable owners manual; and second, the link you gave for further help led to a general Canon sales page. I would have expected more from a designated "product expert".

Re: Could not perform correction -- message -- MF644Cdw

CJAM — Thu, 21 Apr 2022 01:32:37 GMT

I know in my case this was the default setting and had never been changed. I suspect that was true for charliemullen as well. So this is irrelevant and does not respond to the problem.

Re: Could not perform correction -- message -- MF644Cdw

happytwc — Thu, 09 Jun 2022 18:09:59 GMT

Agreed, the guidance is worthless. Canon, you can and should do MUCH better than this.

Re: Could not perform correction -- message -- MF644Cdw

stoc951 — Wed, 09 Nov 2022 16:46:36 GMT

I have the same problem. Canon has replaced this printer 6 times and all eventually have this issue. I usually get one to two months of use out of a printer before it starts printing faded and am unable to run the Correct color Mismatch or Auto Adjust Gradation.

I've always run genuine Canon toner cartridges. I now have a large collection of toner cartridges that are included in about every third new printer I receive from Canon.

Latest drivers are installed. Printer firmware is up to date. We have been on the phone with tech support that we know by heart every troubleshooting step they ask us to go through.

I've always been a big fan of Canon printers and have had many over the years but this model leaves a lot to be desired. I'm sure that Canon is aware of the problems as I've seen numerous posts around the internet about this issue, I wish they would fix it.

Re: Could not perform correction -- message -- MF644Cdw

Ray_Ross — Sat, 26 Nov 2022 23:10:27 GMT

This helped me run the adjustments. I went into the paper settings and unchecked all but the plain 1 paper and letter sizes. It's BS to have to do this, but it worked.

Re: Could not perform correction -- message -- MF644Cdw

Chickadee — Sun, 27 Nov 2022 03:56:04 GMT

I am having the exact same issues. The only things I am now trying that no one else has mentioned is condensation removal which can take up to 3 hours and turning on reduce faint printing after replacing cartridge. Will reply back if it helps.

Re: Could not perform correction -- message -- MF644Cdw

Natoqc — Tue, 09 May 2023 13:01:39 GMT

I have had this problem on and off for years with my MF8580CDW. Usually I use compatible cartridges but for the past year my printer has had correction issues with one out of two cartridges so I ended up installing original Canon cartridges. Worked fine for a few months and then same issue has cropped up again.
I tried swapping cartridges in various combinations (I have 2 sets, one original and one compatible) without any luck. I did all the cleaning ITB etc... While searching on the internet I came accross the service manual. The correction feature reads the alignment signal from the "colour displacement/density signal" sensors. This is the bar in front of the machine just under the toner cartridge tray. With the black toner cartridge removed and the tray slightly pulled out it is possible to see several square or rectangular holes in the plastic cover which is held by 2 screws. In four of those holes (2 on each side) there are small black round sensors. I first gave them a swipe with a small paintbrush without success, I then cleaned them with some alcohol on a cotton bud and hey presto the alignment worked again.
It is relatively simple fix. I do not know why it is not recommended to clean these sensors from time to time. I hope this info will save a few printers from being junked. I was getting close to that point after having spent all morning trying to solve the isssue.

Re: Could not perform correction -- message -- MF644Cdw

stoc951 — Tue, 09 May 2023 16:25:15 GMT

Thanks for posting your solution to this problem. I downloaded the service manual for my MF644CDW and located the color displacement/density sensor and the color displacement sensor located under the cartridge tray. I tried the same things you mentioned and had no results. I keep hoping that some solution eventually works. Even though the printer is still under warranty, Canon has refused to repair or replace it.

Re: Could not perform correction -- message -- MF644Cdw

fredobrien — Sun, 09 Jun 2024 21:43:53 GMT

Setting the paper settings to #1 on both did it. It works now... Weird. But works.

Re: Could not perform correction -- message -- MF644Cdw

phillynook — Thu, 06 Mar 2025 23:57:54 GMT

Same thing happened to me. This printer, MF753CDW (and it looks like many other models) is very finicky about paper size matching and the selection process is complicated and not very clear. Tons of paper size choices and it's hard to confirm that you have selected/checked all the right paper size boxes to match what the printer is requesting. This should be a lot easier. Canon needs to improve this process so the printer does not get hung up on a technical (non)issue and frustrate the customer.

After multiple attempts and scrolling through every possible option, I found the source of the mismatch in paper settings, and got it to work. This took almost an hour to get it right.

Re: Could not perform correction -- message -- MF644Cdw

fredobrien — Fri, 14 Mar 2025 21:54:59 GMT

I have the same problem.
Have tried everything! But... When i replace the Ink cartridges it works............

Re: Could not perform correction -- message -- MF644Cdw

mountain_gunner — Sat, 05 Apr 2025 15:54:37 GMT

I discovered the resolution to my "Could not perform correction" during Full Color Gradation... I noticed when I would take the freshly printed paper and put it on the scanner bed and then place my hand for more weight on the lid to firmly hold the paper down, I could get through both steps, but if I didn't, it always errors. The fix for me:

I confirmed I have Tray 1 set to LTR/Plain 1
I used the freshly printed sheet
Carefully placed the sheet onto the glass, ensuring the corner touched the arrow
The Solution--> Closed the lid and placed my hand on it to full "seat" the paper against the glass (the paper comes out of the printer with a slight curve- I believe putting weight on the lid makes the paper perfectly flat- the scanner is VERY sensitive!

I tried this several times both with the weight of my hand and without it. I was able to reproduce the error without any additional weight on the lid EVERY time. I was able to resolve the error EVERY time with the weight of my hand on the lid (we aren't talking 20 lbs... just firm weight with your hand).

Hope that helps!

Re: Could not perform correction -- message -- MF644Cdw

marcieL — Sun, 01 Feb 2026 02:21:43 GMT

The solution for me was to change ALL cartridges. I was unable to get two of the Canon cartridges so I had to try non-OEM. Only three needed to be replaced. I was getting the "Could not perform correction" message and trying everything online that I could find. I needed it to work (or so I thought) because the quality of the printouts was horrific.

The 3rd-party seller was willing to give me replacements or a refund, but asked what cartridges I'd replaced. While typing the reply, I wondered if changing out the fourth and final one would solve it... and it did!

And so even thought this was a weekend-long headache, the reward is that I now know I can use much less expensive 3rd-party cartridges, that are apparently easier for me to get my hands on. I consider that a WIN!

Re: Could not perform correction -- message -- MF644Cdw

fredobrien — Sun, 01 Feb 2026 17:57:41 GMT

I do the same replace each cartridge until it works. Sometimes 2-3 or at the end 4 .
I use the cheaper cartridges that i can get all 4 for less than one Canon Cartridge.