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  1. #1
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    Bad print only on black Konica Minolta C220

    Hello everyone,

    I have a problem with a Konica Minolta C220. When i printing with black, in a part of paper it is printing with some white gaps, like in atachament. In A4 paper it is smaller, but in A3 paper it is bigger. Anyone maybe knows what is the problem? Maybe it is the alignment between drum and cilinder unit?
    Thank you.
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    Last edited by AdrianBls; 10-24-2021 at 02:58 PM.

  2. #2
    Trusted Tech 50+ Posts lartis.aineias's Avatar
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    Re: Bad print only on black Konica Minolta C220

    Quote Originally Posted by AdrianBls View Post
    Hello everyone,

    I have a problem with a Konica Minolta C220. When i printing with black, in a part of paper it is printing with some white gaps, like in atachament. In A4 paper it is smaller, but in A3 paper it is bigger. Anyone maybe knows what is the problem? Maybe it is the alignment between drum and cilinder unit?
    Thank you.
    The image not help, can you take another picture from a greater distance?

    If your problem is only in bk I would look at bk drum and bk developer unit!

    Στάλθηκε από το AC2003 μου χρησιμοποιώντας Tapatalk

  3. #3
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    Re: Bad print only on black Konica Minolta C220

    I have attached to the original post another picture, one file is potret and one is landscape.
    I also think that drum or developer unit to be the problem. But exactly I do not know what is that problem. I clean and replace developer kit and I changed cylinder and blade from drum unit. I changed even the laser unit. I sow that are 2 screw in cylinder unit to alignment and adjust the cylinder to drum unit. Maybe from this to be?
    Last edited by AdrianBls; 10-24-2021 at 03:27 PM.

  4. #4
    Trusted Tech 50+ Posts lartis.aineias's Avatar
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    Re: Bad print only on black Konica Minolta C220

    Quote Originally Posted by AdrianBls View Post
    I have attached to the original post another picture, one file is potret and one is landscape.
    I also think that drum or developer unit to be the problem. But exactly I do not know what is that problem. I clean and replace developer kit and I changed cylinder and blade from drum unit. I changed even the laser unit. I sow that are 2 screw in cylinder unit to alignment and adjust the cylinder to drum unit. Maybe from this to be?
    Maybe the transfer belt assy. 1St tranafer of bk! Definitely is not laser or electric problem!

    Τake it out and see better the drum and the developer unit, maybe you did something wrong!

    Στάλθηκε από το AC2003 μου χρησιμοποιώντας Tapatalk

  5. #5
    Master Of The Obvious 10,000+ Posts
    Bad print only on black Konica Minolta C220

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    Re: Bad print only on black Konica Minolta C220

    What interval between voids?

    It looks like black developing to me.

    =^..^=
    Last edited by blackcat4866; 10-24-2021 at 04:42 PM.
    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. #6
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    Re: Bad print only on black Konica Minolta C220

    Quote Originally Posted by blackcat4866 View Post
    What interval between voids?

    =^..^=
    Whats voids do you mean? That white areas on the print? If its about that, it is 3 or 3.5 cm between them.

  7. #7
    Geek Extraordinaire 2,500+ Posts KenB's Avatar
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    Re: Bad print only on black Konica Minolta C220

    Quote Originally Posted by AdrianBls View Post
    Whats voids do you mean? That white areas on the print? If its about that, it is 3 or 3.5 cm between them.
    Iíve seen that same problem on Canon machines, although years ago.

    It was always a cracked magnet in the developing cylinder.
    ďI think you should treat good friends like a fine wine. Thatís why I keep mine locked up in the basement.Ē - Tim Hawkins

  8. #8
    Field Supervisor 500+ Posts
    Bad print only on black Konica Minolta C220

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    Re: Bad print only on black Konica Minolta C220

    It could be the 1st transfer roller as suggested. I've seen these kind of issues caused by squeezed ends of the sponge 1st transfer roller not transferring toner. And seen it to occur more on K side rather than the colors because it's always in contact with the drum.
    Defects are simple, our mind is complicated

  9. #9
    Senior Tech 100+ Posts Drivee's Avatar
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    Re: Bad print only on black Konica Minolta C220

    That is electrical contact problem on Dev Section. K colour.

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