Fs1135 faded print

SOURCE: Fading black print

Is the toner orginal?
Try printing a test page and see how that comes out?
Try shaking the toner it might be stuck on one side.

Thanks

Sophia

SOURCE: faded print quality

If your toner saver is off and still getting faded quality means you mirrors and Scanning Lamp are not reflecting images properly.
Now if you are handy on printer then you need to take off glass
from printer then you need to clean ADF units (mirrors,lense lamp etc)
but if you unaware of printer repairing, i highly recommend to call a printer tech who ca fix back it quick.

sometime printer acts weired due to this problem while printer or make copies.

Good luck
and rate all answers.

SOURCE: black printing faded although toner not low

The black developer is defect, you have to call the service to solve this problem. and install FW Update V1.29.12.35

SOURCE: black printing faded although toner not low

metering blade is gunked up. You need to dissasemble part of the imaging unit to fix the problem. Clean it. put it back together and BINGO! Like new. Do this before throwing money into buying a new imaging unit.. You can thank me when this works

SOURCE: Hi, I have a brother

the printer doesnt accept the recycled toner and due to recycling or refilling the toner it might show invalid toner if you can print then there is no problem ignore it as long as print goes if the error code is poping up i think you will have to replace the toner