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  1. #1
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    KM Bizhub c280 moving vertical black lines

    I have a KM Bizhub c280 that has been giving me these weird vertical black lines. I have included a scan of the consumables page printed from the printer.

    A few things:
    It happens on everything that is printed, from both trays and the bypass tray.
    The lines move from page to page, shifting left to right about 4 inches between pages. I can upload a sequence of pages if people need.
    The lines are only on the side being printed on. Nothing on the back unless 2 sided printing is being done, and then the lines are added to each side as they print. And shifting between pages as mentioned above.
    We have had a tech out who claimed to have no idea.

    Does anyone have an idea on what I need to do to fix this?

    KM c280 scan.pdf

  2. #2
    Field Supervisor 500+ Posts
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    Re: KM Bizhub c280 moving vertical black lines

    Please print out the colour halftone test pages set to 125 and post them please.

    Also indicate the feed direction, that would help.

  3. #3
    Senior Tech 100+ Posts
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    Re: KM Bizhub c280 moving vertical black lines

    I remember we have this "car tire" pattern on old C203 and bad Ph unit/laser was causing that.

  4. #4
    Master Of The Obvious 10,000+ Posts
    KM Bizhub c280 moving vertical black lines

    blackcat4866's Avatar
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    Re: KM Bizhub c280 moving vertical black lines

    95mm is the interval for a drum defect.

    Try this:
    Attached Files Attached Files
    Last edited by blackcat4866; 08-08-2019 at 11:27 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 =^..^=

  5. #5
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    KM Bizhub c280 moving vertical black lines

    dannys's Avatar
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    Re: KM Bizhub c280 moving vertical black lines

    I would checked the fuser

  6. #6
    Senior Tech 250+ Posts Max's Avatar
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    Re: KM Bizhub c280 moving vertical black lines

    Had something very similar on the previous generation copier. There was a bulletine about it. Was down to one of the control boards at the back of the copier. Possibly Lazer but I'm leaning towards one of the boards.

  7. #7
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    Re: KM Bizhub c280 moving vertical black lines

    Try the test pages posted by blackcat first to figure out if you have a bad IU or not, but this looks like and I/O issue to me. I am suspecting ram.

  8. #8
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    Re: KM Bizhub c280 moving vertical black lines

    Quote Originally Posted by blackcat4866 View Post
    95mm is the interval for a drum defect.

    Try this:
    Apparently my scanner is slightly crooked. (Not the one on the printer in question).

    Someone asked about feed direction so I'll answer that the beset I can.
    Facing the printer the pages sit portrait, feed to the right, and print out face down top to the left (landscape).

    5.jpg7.jpg8.jpg9.jpg10.jpg1.jpg2.jpg3.jpg4.jpg6.jpg

  9. #9
    Service Manager 1,000+ Posts
    KM Bizhub c280 moving vertical black lines

    Synthohol's Avatar
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    Re: KM Bizhub c280 moving vertical black lines

    you cant use portrait and landscape in the same sentence, its confusing.
    simply say SEF or LEF. we understand.

  10. #10
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    Re: KM Bizhub c280 moving vertical black lines

    Quote Originally Posted by Synthohol View Post
    you cant use portrait and landscape in the same sentence, its confusing.
    simply say SEF or LEF. we understand.
    Printer feeds from the paper tray LEF, but rolls out to be picked up the other way, facedown. Not sure how to describe that better.

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