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  1. #1
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    Sharp MX4100 MX4101

    Light washed out areas, black only.
    CMY OK
    See test sheets for sample
    Swapped cyan and blk drum same, no change.
    Dev mag brush looks even (not tiger striping)

    Resized_20200916_114606.jpg

    I'm leaning towards Main Charge Receptacle but wanted your thoughts on this old box

    Thanks!

  2. #2
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    Sharp MX4100 MX4101


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    Re: Sharp MX4100 MX4101

    I would also check primary transfer.

  3. #3
    The Wolf 1,000+ Posts mojorolla's Avatar
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    Re: Sharp MX4100 MX4101

    Quote Originally Posted by rspicer View Post
    I would also check primary transfer.
    Pull the IT belt out and remove the belt. Look at the FTR (first transfer rollers). If memory serves correctly, these PM kits came with the four rolls under the belt. Ensure the rear wall and belt contacts are free of toner. Also make sure LSU glass are clean and shutter is working.


    Failing to plan is planning to fail!!!

  4. #4
    Senior Tech 250+ Posts spanky's Avatar
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    Re: Sharp MX4100 MX4101

    Run a black skyshot and stop the copier during this process.

    Are the light areas showing on the drum?

    If not are they showing on the transfer?

    If not that leaves the second transfer.

  5. #5
    Senior Tech 250+ Posts
    Sharp MX4100 MX4101


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    Re: Sharp MX4100 MX4101

    You can swap the black drum unit with one of the color ones and see if the problem moves to the color you swapped it with.

  6. #6
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    Re: Sharp MX4100 MX4101

    Hi

    secondary transfer belt in the door

  7. #7
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    Re: Sharp MX4100 MX4101

    Remove laser, there is a solenoid in the laser cavity that operates the shutter that gets covered in toner. Either leave the shutter off or remove and clean the solenoid

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