[Electrical] DC252 Yellow background on copies only

[CopierTechofOmens]

Scan001.PDFScan001(1).PDF

Copies have yellow background no visible yellow image. Prints come out fine, just fine.

Ran all setups which complete without error.

Updated system software, reset NVM, cleaned all connections, cables, Replaced ROS, Developer Housing, and BP PWB

[InterfaceP]

Re: DC252 Yellow background on copies only

Preform an Auto Gradation for starts.

[CopierTechofOmens]

Re: DC252 Yellow background on copies only

All adjustments performed according to manual

[adriansto]

Re: DC252 Yellow background on copies only

Did you performed the IIT/IPS tests pattern ?

[CopierTechofOmens]

Re: DC252 Yellow background on copies only

Yes those also have yellow backgroundScan001(3).PDF

[adriansto]

Re: DC252 Yellow background on copies only

Try another chart test 82Exxxx.
Never seen a CCD so uncalibrated

[CopierTechofOmens]

Re: DC252 Yellow background on copies only

It's also not the CCD (Lens Assembly)

[zuojin168]

Re: DC252 Yellow background on copies only

This like yellow charging bar (drum)
If change the yellow drum unit also appeared the same problem,
Check the drum unit at the back of the charging part (spring)

[InterfaceP]

Re: DC252 Yellow background on copies only

Curious to know if you got it figured out.

[CopierTechofOmens]

Re: DC252 Yellow background on copies only

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The correct answer was ESS PWB. Thanks for playing.