IR 6570 Black Streaks Issue – No Improvement After Parts Replacement

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  • balad
    Technician
    • Jun 2014
    • 16

    #1

    IR 6570 Black Streaks Issue – No Improvement After Parts Replacement

    The IR 6570 is producing black streaks. I've already replaced the developing unit, main board, DC controller, and polygon mirror, but there's no improvement. What could be the possible cause?
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  • balad
    Technician
    • Jun 2014
    • 16

    #2
    This is A4 paper

    Comment

    • Brian8506
      Service Manager

      Site Contributor
      1,000+ Posts
      • Feb 2009
      • 1658

      #3
      Primary corona. Drum blade.

      Comment

      • balad
        Technician
        • Jun 2014
        • 16

        #4
        Originally posted by Brian8506
        Primary corona. Drum blade.
        Thanks for the suggestion. I'll check the primary corona and drum blade as well.

        Comment

        • zoraldinho
          teacher-guide-expert-guru

          Site Contributor
          2,500+ Posts
          • Mar 2008
          • 4999

          #5
          It looks like something is wiping or sliding across the image before it reaches the heater.
          If it ain't broke, don't fix it
          A picture is worth a thousand words

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