Ligth prints Konica 950

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  • chivozx
    Technician
    • May 2014
    • 34
    #1

    Ligth prints Konica 950

    Hello,
    I can not find solution to the light impressions in a Konica BH Pro 950.
    I think it's transfer failure. I have changed the transfer wires, charge corona and charge wires.
    In the opc it is appreciated that the image is denser than the one that later appears in the paper.
    I leave you a sample.
    Thank you.

    SKMBT_C36017063011581_Página_1.jpgSKMBT_C36017063011581_Página_2.jpg
    Tags: None
    • Synthohol
      Certified Konica Expert

      Site Contributor
      5,000+ Posts
      • Mar 2016
      • 5851
      #2
      Re: Ligth prints Konica 950

      Change your developer. It's contaminated with paper dust.
      We know a thing or two because we've seen a thing or two.
      The medication helps though...

        Comment

        • methogod
          Senior Tech

          Site Contributor
          500+ Posts
          • Dec 2008
          • 921
          #3
          Re: Ligth prints Konica 950

          AGREE

          Originally posted by Synthohol
          Change your developer. It's contaminated with paper dust.

            Comment

            • allan
              RTFM!!

              5,000+ Posts
              • Apr 2010
              • 5462
              #4
              Re: Ligth prints Konica 950

              So the image on the drum is good but toner does not get pulled to the paper.
              What is the count on the drum and developer?

              Looks very much the same as a B751 image with a transfer current leakage.
              Make sure there is nothing touching the wires, and that the contacts are touching properly.
              You could find another HV unit...
              Whatever

                Comment

                • blackcat4866
                  Master Of The Obvious

                  Site Contributor
                  10,000+ Posts
                  • Jul 2007
                  • 23009
                  #5
                  Re: Ligth prints Konica 950

                  Originally posted by chivozx
                  ... I think it's transfer failure. I have changed the transfer wires, charge corona and charge wires.
                  In the opc it is appreciated that the image is denser than the one that later appears in the paper... Gracias.
                  Originally posted by allan
                  So the image on the drum is good but toner does not get pulled to the paper.
                  What is the count on the drum and developer?

                  Looks very much the same as a B751 image with a transfer current leakage.
                  Make sure there is nothing touching the wires, and that the contacts are touching properly.
                  You could find another HV unit...
                  I agree with allan for a couple reasons. If the latent image is well developed the developer is doing it's job. It must be a transfer loss and there are other ways you can lose transfer:
                  Perhaps the transfer separation unit does not raise close enough to the drum.
                  Perhaps the corona blocks are discharging.
                  Perhaps the high voltage cables are leaking. Look for burn/arc marks to the frame
                  Perhaps you have an HVT failure.

                  I would investigate the possibilities in that order.

                  On these machines the developer rarely undertones. It almost always overtones when the developer fails. =^..^=
                  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 =^..^=

                    Comment

                    • chivozx
                      Technician
                      • May 2014
                      • 34
                      #6

                        Comment

                        • methogod
                          Senior Tech

                          Site Contributor
                          500+ Posts
                          • Dec 2008
                          • 921
                          #7
                          Re: Ligth prints Konica 950

                          you can try to adjust that by upping the LD a bit...

                            Comment

                            • chivozx
                              Technician
                              • May 2014
                              • 34
                              #8

                                Comment

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