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  1. #1
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    BH C3350i "oil stains"

    hi everyone, on a copier I have stains like oils and random.

    have you ever seen this?
    Attached Images Attached Images

  2. #2
    Service Manager 2,500+ Posts tsbservice's Avatar
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    Re: BH C3350i "oil stains"

    Looks like cockroaches infested machine.
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  3. #3
    Master Of The Obvious 10,000+ Posts
    BH C3350i "oil stains"

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    Re: BH C3350i "oil stains"

    I don't know the name, but I have seen batches of paper that develop brown "water stains" after heating in the fuser. I believe that it's a chemical residue from the paper making process. It's especially interesting on monochrome copiers. The enduser shows you the brown spots ... and you point out that a monochrome copier cannot ever make brown.

    Also on lesser quality media you can find marks and stains on the unprinted paper in the tray. It's not all perfectly white. =^..^=
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  4. #4
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    Re: BH C3350i "oil stains"

    the paper is of very good quality and I checked, all the pages are blank
    the paper is of very good quality and I checked, all the pages are blank

  5. #5
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    Re: BH C3350i "oil stains"

    Quote Originally Posted by blackcat4866 View Post
    I don't know the name, but I have seen batches of paper that develop brown "water stains" after heating in the fuser. I believe that it's a chemical residue from the paper making process. It's especially interesting on monochrome copiers. The enduser shows you the brown spots ... and you point out that a monochrome copier cannot ever make brown.

    Also on lesser quality media you can find marks and stains on the unprinted paper in the tray. It's not all perfectly white. =^..^=


    the paper is of very good quality and I checked, all the pages are blank
    Last edited by diable69BG; 3 Weeks Ago at 03:00 PM. Reason: double

  6. #6
    Certified Konica Expert 2,500+ Posts
    BH C3350i "oil stains"

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    Re: BH C3350i "oil stains"

    on first glance of a low res it looks like used toner stuck in dimples on the transfer belt. ive seen oil spots but they usually have a halo of saturation around the spots.
    can you run 11x17 and see if they repeat?
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  7. #7
    Service Manager 1,000+ Posts Gift's Avatar
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    Re: BH C3350i "oil stains"

    I haven't seen any oil stains since the fuser don't need that shitty silicone oil

    Moisture / condensed water can leave temporary marks but this one here, I'm not shure - is it re-produceable? Does it makes a difference in BK/Color mode?

  8. #8
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    Re: BH C3350i "oil stains"

    the spots disappeared as they appeared ....
    now the belt gears are broken

    what shit this machine
    what shit this machine

  9. #9
    Senior Tech 100+ Posts suomi's Avatar
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    Re: BH C3350i "oil stains"


    I-Series belt cleaning units clogging up also A4 machines.



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