MX-3501N light prints

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  • tonerhead4u
    Technician
    • Feb 2010
    • 13

    #1

    [CQ] MX-3501N light prints

    MX-3501N has light prints (black) even with 22-6. System settings print exposure setting is maxed to dark, DR & DV 56k. This machine has basiclly been this way from new. Customer just now seeing it as an issue. Anyone have any suggestions.
  • OMD-227

    #2
    Is this affecting colors as well, or only black?
    What is the values of dev stir 25-01 when its finished the cycle?

    If the values are close to 128, check toner save modes are not activated, return both system settings Print & Copy density back to normal, run a full color calibration 44-06, 44-26, 46-24, 67-24.

    Comment

    • mtech
      Technician

      250+ Posts
      • Mar 2007
      • 307

      #3
      How do the copies look if you take the machine out of auto exposure and use manual (text)?

      Comment

      • OMD-227

        #4
        Problem stated is printing quality, not copying.

        However, if b/w printing is faint, copies will be bad as well.

        Gotta fix the engine first.

        Comment

        • mtech
          Technician

          250+ Posts
          • Mar 2007
          • 307

          #5
          Sorry, I read the post too quickly. You are right either way. Engine must be calibrated first. I remember having light cq problems right out of the gate with some of these. It was only with copying though. If you set exp. to manual copies looked much better.

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          • glewisme
            Trusted Tech

            100+ Posts
            • Nov 2009
            • 240

            #6
            If it's only on black try setting SIM 46-1 to mode 1 and recalibrate,also as Wazza said sim 25-1 when done should be at or near 128.

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            • tonerhead4u
              Technician
              • Feb 2010
              • 13

              #7
              DV bias adjustment took care of the issue. Thanks all.

              Comment

              • glewisme
                Trusted Tech

                100+ Posts
                • Nov 2009
                • 240

                #8
                By the way sorry 46-19 ,funny I can fix a copier but have yet to learn typing skills!

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