Changing colors.

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  • Terna247
    Technician

    50+ Posts
    • Jan 2019
    • 64

    Changing colors.

    Hi I am working on this BH 203. But I got stuck when I noticed that cyan is always changing color on the sent work.... I have adjusted background voltage, Dmax. The iu is in top shape. The life cycle of all units still good. I intend changing the ITB. anyone encountered color changing before?
  • Copier Addict
    Aging Tech

    Site Contributor
    10,000+ Posts
    • Jul 2013
    • 13039

    #2
    Re: Changing colors.

    Originally posted by Terna247
    Hi I am working on this BH 203. But I got stuck when I noticed that cyan is always changing color on the sent work.... I have adjusted background voltage, Dmax. The iu is in top shape. The life cycle of all units still good. I intend changing the ITB. anyone encountered color changing before?
    It would be beneficial to post some examples of these colour changes.

    Comment

    • allan
      RTFM!!

      5,000+ Posts
      • Apr 2010
      • 5445

      #3
      Re: Changing colors.

      Have you done gradation? If the IU is in shape change the background voltage and Dmax back.
      There is always some issues with grey and purple. Try changing print resolution and color settings in the driver settings.
      Whatever

      Comment

      • 3ktlc
        Trusted Tech

        Site Contributor
        100+ Posts
        • Feb 2018
        • 178

        #4
        Re: Changing colors.

        This series does that. We had a customer return the machine. Had Konica Minolta come to our place and was told that this was normal. Changed more than the 8020/8031 series did.

        Comment

        • Terna247
          Technician

          50+ Posts
          • Jan 2019
          • 64

          #5
          Re: Changing colors.

          Performed gradation the first time, machine normalized then started all over after three weeks... I noticed a serious tear on the transfer belt... Thought it could be it but no registration problems. GOT THE PROBLEM WITH CYAN. DECIDES TO PRINT SOLIDS ELIMINATE LIGHT BACKGROUNDS. THANKS.

          Comment

          • tech51
            Senior Tech

            500+ Posts
            • Jan 2009
            • 846

            #6
            Re: Changing colors.

            Could be a print head problem.

            There are four separate ones on that model, I would try swapping the cyan ph with the magenta ph and see if the fault moves.

            Comment

            • lavind
              Junior Member
              • Dec 2011
              • 3

              #7
              Re: Changing colors.

              Noticed that you said "sent" work. Does that mean that internal patterns are normal and its only when it is being printed to? if so then your issue may be file related.

              Comment

              • Terna247
                Technician

                50+ Posts
                • Jan 2019
                • 64

                #8
                Re: Changing colors.

                No Lavind..... I did memory/HDD bus check. They were all OK thanks.

                Comment

                • Terna247
                  Technician

                  50+ Posts
                  • Jan 2019
                  • 64

                  #9
                  Re: Changing colors.

                  Originally posted by tech51
                  Could be a print head problem.

                  There are four separate ones on that model, I would try swapping the cyan ph with the magenta ph and see if the fault moves.
                  Been there. Thanks

                  Comment

                  • Copier Addict
                    Aging Tech

                    Site Contributor
                    10,000+ Posts
                    • Jul 2013
                    • 13039

                    #10
                    Re: Changing colors.

                    Originally posted by Terna247
                    Been there. Thanks
                    If it is only cyan being affected, try a new IU. Even if it is in "top shape" it could be defective.
                    H/V board could also be the issue.

                    Comment

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