The sudden death of a DU-104

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  • orestesp
    Trusted Tech

    Site Contributor
    100+ Posts
    • Sep 2019
    • 211
    #1

    The sudden death of a DU-104

    Hello,

    Something happened the other day that had me confused. I printed a couple of sheets on the C6500, made some changes to the job, and then quite literally after 10 minutes when I went to re-submit job with the changes I made this happens... The black drum for some reason started picking up excess toner and soiling the entire background with it. The first thing I did was throw in a new K drum and the problem immediately stopped. I went ahead and printed a couple of hundred sheets after that with no problem at all.

    Machine counter is 3M. New coronas, K drum and dev almost at their EOL. The cleaning blade isn't to blame, it was the first thing I checked.

    I've attached a picture of the drum, where you can clearly see what happened (I have also removed some details from the printed job, but it shouldn't matter as you can still see what's going on). Sorry for not attaching a picture of the printed sheet, I had totally forgot about taking a picture of it.

    Thanks.
    Attached Files
    Tags: drum, job, made, picture, printed
    • blackcat4866
      Master Of The Obvious

      Site Contributor
      10,000+ Posts
      • Jul 2007
      • 22702
      #2
      Re: The sudden death of a DU-104

      That looks like a contaminated primary charge to me. =^..^=
      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

        • Synthohol
          Certified Konica Expert

          Site Contributor
          5,000+ Posts
          • Mar 2016
          • 5463
          #3
          Re: The sudden death of a DU-104

          were all the proper adjustments made?
          gamma? counter reset? red screws removed from blade? slit glass clean on laser?
          We know a thing or two because we've seen a thing or two.
          The medication helps though...

            Comment

            • orestesp
              Trusted Tech

              Site Contributor
              100+ Posts
              • Sep 2019
              • 211
              #4
              Re: The sudden death of a DU-104

              This happened to the old drum. When I installed a new one to replace the old one, the problem was gone. I didn't change any other variable when I installed the new drum on K. And as I said, the old one was nearing its EOL, it wasn't way past it or something like that that may explain this.

              It went from working OK to this in literally 10 minutes. I don't know how, the machine was just sitting idle.

                Comment

                • copyman
                  Owner / Technician

                  Site Contributor
                  2,500+ Posts
                  • Sep 2005
                  • 4215
                  #5
                  Re: The sudden death of a DU-104

                  No one has asked the first question I always ask with a weird issue like this, are you using ALL genuine K/M consumable supplies?

                  That is very stange for a drum to take a crap like that???

                    Comment

                    • orestesp
                      Trusted Tech

                      Site Contributor
                      100+ Posts
                      • Sep 2019
                      • 211
                      #6
                      Re: The sudden death of a DU-104

                      Originally posted by copyman
                      No one has asked the first question I always ask with a weird issue like this, are you using ALL genuine K/M consumable supplies?

                      That is very stange for a drum to take a crap like that???
                      It was a genuine KM drum. I don't use compatible parts on this machine.

                      Sent from my Redmi Note 5 Pro using Tapatalk

                        Comment

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