kmbh c452 print yellow background on every printout p-22 error code appear

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  • rolis33
    Junior Member
    • Nov 2023
    • 1

    #16
    Re: kmbh c452 print yellow background on every printout p-22 error code appear

    If your printer print whole background in color (yellow, magenta, cyan or black), definitely this is charge unit fault. It's not necessary to replace an expensive IU. If you want to save a lot of money, buy on AliExpress charge unit for around $30. Not only charge grid or charge wire (charge saw on some models), but whole charge unit. The problem causes high voltage leakage through the charge unit plastic body. Remove charge grid, take a close look inside, often you can see (but not necessary) a charred channel at one end of the charge wire where it touches the plastic, or on wire cleaning part. How to disassemble the IU, you can find on YouTube (be careful when doing this, don't damage the surface of the drum).
    Hope my post will help to all who looks simple and not expensive solution for this problem.

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