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elkinhom · ‎10-24-2017

There is a slight red colorshift when printing. Changed cartridges and ran through the cleaning cycles. Try to run the auto adjust and they all fail. Auto Adjust gradatation...fails. Correct print color mismatch fails. Probably try factory reset next.

Natoqc · ‎05-09-2023

I'm replying to this old post as it may help somebody else.

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 (I have onet of original and one of compatible) in various combinations without any luck. 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 sevaral 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.

View solution in original post

VitaliyK · ‎03-18-2024

These are NOT sensors. These are just plastic pins. There are 3 sensors on the assembly side faced ITB.

How cleaning plastic pins can improve picture quality? 🙂

VitaliyK · ‎03-18-2024

Correction: There 2 sensors. Not 3. One hole is empty.

thvieira86 · ‎06-23-2024

Thanks for sharing the pictures but I could notice those are not the same as my MF8080C printer.
Do you know where those sensors cold be on my model?

Thanks

VitaliyK · ‎03-05-2024

Hope somebody solve this issue by now.

I have MF8580 with has about 3mm! color mismatch. It gives "Correct Print Color Mismatch fails". Cleaning sensors did nom make any difference. Another printer is MF8350. Same, just older model shows correction done but yellow is about 1mm offset. What else can be done about it.

willt · ‎05-31-2024

I wanted to post my solution here for the same issue that I have with the MF8280Cw.

I have found that ALL of the following conditions need to be met for the colour correction [=color to you in the US 😉 ] to be successful. If a single one of these is not true then the colour mismatch correction fails:

1) ALL toner cartridges need to be the same model/brand (not necessarily Canon)

2) ALL toner cartridges need to be fairly full. If ANY is less than half full then it doesn't work

3) If the ITB is dirty it doesn't work. In the maintenance menu there is a "Clean ITB" option which will clean the ITB (=intermediate transfer belt)

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MF8580CDW Correct Print Color Mismatch fails