[CQ] Lexmark 4600 Color Problem

[cscce]

I am working on a Lexmark C782 with 4600 MFP attached. The unit only has 130K pages printed despite its age. When scanning using the ADF the color reproduction on the front side is slightly yellow, the back side leans much more toward yellow. White areas remain white and print quality pages look fine - no yellowing. Only the ADF is affected.
I haven't found anything in the service manual or the forums about this. Can the scanner be adjusted or is this an indication that the lamps need to be replaced?

Many thanks!

[subaro]

Re: Lexmark 4600 Color Problem

I am working on a Lexmark C782 with 4600 MFP attached. The unit only has 130K pages printed despite its age. When scanning using the ADF the color reproduction on the front side is slightly yellow, the back side leans much more toward yellow. White areas remain white and print quality pages look fine - no yellowing. Only the ADF is affected.
I haven't found anything in the service manual or the forums about this. Can the scanner be adjusted or is this an indication that the lamps need to be replaced?

Many thanks!

Have has similar issues with lexmark and the resolution found was to do a factory reset from service mode. Had one machine new out of box doing this and was about to return it, but thought would do a factory reset and it worked. There are different levels of reset, but can't specefically remember now, which one i did, but i would start with the base firs.

[cscce]

Re: Lexmark 4600 Color Problem

Have has similar issues with lexmark and the resolution found was to do a factory reset from service mode. Had one machine new out of box doing this and was about to return it, but thought would do a factory reset and it worked. There are different levels of reset, but can't specefically remember now, which one i did, but i would start with the base firs.

Thanks! I'll give it a try.