C451 problem grayscale

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  • blago_vd
    Technician
    • Apr 2009
    • 38
    #1

    C451 problem grayscale

    Hello,
    I have a problem with C451 - when printing 250-300g paper A4 landscape in grayscale the background density is uneven (see the attachment). The machine is at 35000 copies. Any ideas for solving the problem?
    Thanks in advance.
    Attached Files
    Tags: bypass tray, fusing unit
    • Stirton.M
      All things Konica Minolta

      1,000+ Posts
      • Oct 2009
      • 1804
      #2
      Use bypass tray at thick 4 setting.
      "Many years ago I chased a woman for almost two years, only to discover that her tastes were exactly like mine: we both were crazy about girls."
      ---Groucho Marx


      Please do not PM me for questions related to Konica Minolta hardware.
      I will not answer requests or questions there.
      Please ask in the KM forum for the benefit of others to see the question and give their input.

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        • blago_vd
          Technician
          • Apr 2009
          • 38
          #3
          The printout was made with these settings - bypass tray at thick 4. Also I redused the transport speed of the fusing unit and redused the printer resist loop for thick 4 mode.

            Comment

            • Stirton.M
              All things Konica Minolta

              1,000+ Posts
              • Oct 2009
              • 1804
              #4
              How does it do with normal paper?

              You may need to adjust 2nd transfer values in tech rep mode for thick stocks if it looks fine on thin stocks.
              "Many years ago I chased a woman for almost two years, only to discover that her tastes were exactly like mine: we both were crazy about girls."
              ---Groucho Marx


              Please do not PM me for questions related to Konica Minolta hardware.
              I will not answer requests or questions there.
              Please ask in the KM forum for the benefit of others to see the question and give their input.

                Comment

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