Konica c284e Print comes with multiple color lines with backside toner

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  • Gama
    Junior Member
    • Nov 2023
    • 8
    #1

    Konica c284e Print comes with multiple color lines with backside toner

    Hi we have a personal Konica c284e and works well for a long time
    In the last few days it has given copies with multiple C M Y K lines all over random
    and also behind the paper it looks black color here and there

    WhatsApp Image 2024-09-04 at 12.14.01 AM.jpg
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    • Synthohol
      Certified Konica Expert

      Site Contributor
      5,000+ Posts
      • Mar 2016
      • 5892
      #2
      looks like the transfer belt cleaning blade or auger channel is amiss.
      it may be best to replace the belt unit unless its new enough its worth fixing.
      a visual on the belt unit should help.
      i think those bars are color density/registration patterns that dont look cleaned off the belt properly.
      We know a thing or two because we've seen a thing or two.
      The medication helps though...

        Comment

        • blackcat4866
          Master Of The Obvious

          Site Contributor
          10,000+ Posts
          • Jul 2007
          • 23010
          #3
          Maybe I'm wrong about this, but those CMYK bars are usually caused by the HVT shutting down for short periods of time. I think that you'll find that the distance between those CMYK bars is the exact distance between the drum units, as they sit in the machine. The main reason that the HVT shuts down is that one of the developing rollers is arcing to its drum unit. The big question is: "Which color?" The color that makes the lightest band is usually the one that is arcing. I don't see a yellow band, so my guess is yellow. I would replace the yellow drum and developing unit, based on your two photos. =^..^=
          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 =^..^=
            👍 1

            Comment

            • Albonline
              Service Manager

              1,000+ Posts
              • Sep 2008
              • 1153
              #4
              the pic looks like there may be developer on the 2nd transfer roller also, this could cause hv arcing.

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