black marks on Long edge paper operationside xerox 700

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  • Blommers
    • Jun 2025

    #1

    black marks on Long edge paper operationside xerox 700

    I have a xerox 700.
    and have little black marks (stripes) on the paper (size A3) on the operation side, with 3 mm between it
    Howe to resolve this?
  • Exok
    Senior Tech

    500+ Posts
    • Jun 2011
    • 750

    #2
    Re: black marks on Long edge paper operationside xerox 700

    Best to take a photo of image quality problems and post them for more accurate suggestions. Black marks can be caused by many things.

    One helpful way to figuring out what is causing image quality problems is to make 1 copy at a time. Stop the copy job (open the door in mid copy to jam the machine) in a couple of locations in the copy process. By doing this you can tell at what point the marks appear on the page.

    You may have a problem with a drum, developer unit, transfer belt asb, transfer cleaning unit, 2nd BTR, fusing unit.

    Also, the more info you can supply the better such as: This problem is on every sheet, This problem comes and goes, This problem started after..., Only shows up when I use..., I did so and so and now I have this problem...

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    • Blommers

      #3
      Re: black marks on Long edge paper operationside xerox 700

      The first prints are oke and then after a while it is comming on the site of the paper
      Attached Files

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      • Milo Wilson
        Trusted Tech

        250+ Posts
        • Feb 2009
        • 499

        #4
        Re: black marks on Long edge paper operationside xerox 700

        You need to do paper registration setup series on each tray.

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        • fogra27
          Technician
          • Mar 2011
          • 29

          #5
          Re: black marks on Long edge paper operationside xerox 700

          clean CIS senzor and do setup. than change 746-939 and 746-940 to 50 this move the marks to the edge of the paper.

          BB

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