My Samsung CLX-3160FN has stopped printing colour. I have changed all the cartridges and it will copy in colour, but prints in black and white.

Replace black developer unit.Toner cartridge is merely a toner tank

Got one clx 3185fn printing black only. even press color copy button.
Cartridges are new. Please advise.

Thanks
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Dear This is the Quality issue.
can be solved by replacing black developer in imaging unit.(better solution)
Alternate is change the Imaging unit(costly solution).

You will need to replace the imaging unit. It the part where the toner cartridges and waste toner tank sits. The part number is CLP-R300A. You can find it online or at your local office supply store.

Go to printer properties and check whether you have selected print in grey mode and also check whether you have selected the economic mode. Rectify the same will solve your problem.

Revert back for more assistance.

Usually I've seen that happen when you use generic toners. There are 4 toner clutches down the right side, with the right cover off you can see which clutch is doing the grinding. Many of the generics are overfilled and hard to turn and will make the noise until you loosen them by hand turning them til they loosen up, or just replacing.

Is it only with one colour ? I had the same problem (only with black) and before buying another unit dismantled the imaging unit to find a build up of toner on the metering plate edge, I cleaned it and now it's fine.
It takes a bit to get to... 3 fixing screws each side plus one for the belt shute and one at the top. Remove the side plates, followed by the image drum (with great care) then each colour toner roller unit (they just slide forward) until the black unit is exposed. Remove the 5 cover fixings and then you can clean the plate edge. kh

transfer belt worned out.

Did you try to check the toner?

Try to print if the copy is lighter than before or it cant copy or print then you need to replace your toner cartridge.

Hope it can help you. (" ,)

turn off, remove the cartridge and turn back on, do you hear the noise? if no then it's the cartridge

hope this helps