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  1. #1
    Senior Tech 250+ Posts
    Konica Minolta c452 P5 P21 P28

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    Konica Minolta c452 P5 P21 P28

    Konica Minolta c452 getting codes P5 P21 P28. Image is with Yellow Background.

    Replaced all 3 imaging units but still same.

    Please advise

    Thanks

  2. #2
    RTFM!! 2,500+ Posts allan's Avatar
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    Re: Konica Minolta c452 P5 P21 P28

    The old laser or ribbon cable issue?
    Is that background a nice consistent tone?
    With or without a border?
    Whatever

  3. #3
    Service Manager 1,000+ Posts tsbservice's Avatar
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    Re: Konica Minolta c452 P5 P21 P28

    Hi mearmi, attached images as always will help a lot. We are mostly contributors not forecasters.
    A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.

    Blessed are they who can laugh at themselves, for they shall never cease to be amused.

  4. #4
    Senior Tech 250+ Posts
    Konica Minolta c452 P5 P21 P28

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    Re: Konica Minolta c452 P5 P21 P28

    Quote Originally Posted by tsbservice View Post
    Hi mearmi, attached images as always will help a lot. We are mostly contributors not forecasters.

    Please find the attached image and advise.

    Thanks
    Attached Images Attached Images

  5. #5
    RTFM!! 2,500+ Posts allan's Avatar
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    Re: Konica Minolta c452 P5 P21 P28

    Quote Originally Posted by mearmi View Post
    Please find the attached image and advise.

    Thanks
    Did you try the connectors and ribbon cables?
    HV to the yellow IU could be irregular because of a bad connection or even a bad HV board but never changed one.
    Would not like to think its the laser but that is an easy thing to test.

    Remove and reinstall the HV board or replace it if you wish.
    One way to trouble shoot is to swap HV leads between yellow and magenta.
    Have done that to trouble shoot on other models but not on a C452.
    Whatever

  6. #6
    Service Manager 1,000+ Posts tsbservice's Avatar
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    Re: Konica Minolta c452 P5 P21 P28

    Quote Originally Posted by mearmi View Post
    Please find the attached image and advise.

    Thanks
    Most likely it's PH unit. To test, temporarily block yellow PH window. If the background goes away, replace the P/H Unit assembly.
    A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.

    Blessed are they who can laugh at themselves, for they shall never cease to be amused.

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