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  1. #11
    Service Manager 5,000+ Posts tsbservice's Avatar
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    Re: Konica minolta c452 light print at bottom

    Quote Originally Posted by allan View Post
    Not enough initial info so I assumed to feed direction...
    I got the feed direction wrong and everything else followed.
    It costs a fraction of the second to draw an arrow pointing towards paper feeding direction but who am I to assume 😅
    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.

    I don't reply to private messages from end users.

  2. #12
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    Re: Konica minolta c452 light print at bottom

    Ι m sorry for the confusion.Most of them have a red background.Thank you all for the help.
    Attached Images Attached Images

  3. #13
    Field Supervisor 500+ Posts
    Konica minolta c452 light print at bottom

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    Re: Konica minolta c452 light print at bottom

    I am still vouching for the Magenta and Cyan Drum/Developer Unit. Can you send Photos of it?

    I have seen this problem a bunch of times and in 60% of the cases its the cleaning blade (Is that the correct name?) of the Drum Units, 30% of the time its low developer and the last 10% are other parts like fusing unit or transfer unit

  4. #14
    Service Manager 2,500+ Posts
    Konica minolta c452 light print at bottom


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    Re: Konica minolta c452 light print at bottom

    I would start with at least the Magenta Image unit. Or split the IU open and clean corona, etc. Maybe add a little aftermarket developer.

  5. #15
    Master Of The Obvious 10,000+ Posts
    Konica minolta c452 light print at bottom

    blackcat4866's Avatar
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    Re: Konica minolta c452 light print at bottom

    Quote Originally Posted by techsxge View Post
    I am still vouching for the Magenta and Cyan Drum/Developer Unit. Can you send Photos of it?

    I have seen this problem a bunch of times and in 60% of the cases its the cleaning blade (Is that the correct name?) of the Drum Units, 30% of the time its low developer and the last 10% are other parts like fusing unit or transfer unit
    I agree. Magenta IU for sure. Cyan IU to a less extent. Actual image count becomes inconsequential after a year or two has passed.

    Having those images definitely helps. =^..^=
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

  6. #16
    RTFM!! 5,000+ Posts allan's Avatar
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    Re: Konica minolta c452 light print at bottom

    Where the IU's new or rebuilt? Clean the laser slit glasses proper as per copyman. Pull the Laser unit if needed to clean it proper.
    The ITBU how old is that? Its not something I have seen on this model but if the IU and laser checks out to be good a primary transfer issue could be something to look into.
    But there is work to do before considering that.

    Its better to test run paper in LEF to check as much of the working surfaces as possible but sure you know that.
    Your post to rep ratio is something.
    Whatever

  7. #17
    Service Manager 1,000+ Posts Gift's Avatar
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    Re: Konica minolta c452 light print at bottom

    Finally some neat samples - I'd start with the laser, too - looks mainly like a dirty polygon mirror surface

  8. #18
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    Re: Konica minolta c452 light print at bottom

    It was the magenta IU.Ι changed it and everything is fine.Thank you all for your help.

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