KM-3050, 4050, 5050 - Full black pages

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  • b3p0
    Technician

    50+ Posts
    • Feb 2012
    • 60
    #1

    KM-3050, 4050, 5050 - Full black pages

    We have lots of these out in the field. Over the last 6 months, we've had about 5 machines with this same problem.
    All machine output is full black pages. Image is still under there, but basically a full black coverage on the page. It's the main charge contacts getting weird.
    Removing the Main Charge corona and closely inspecting in some cases has revealed crap on the wires, gingerly cleaning them with a pick and alcohol wipe can sometimes work, then cleaning the contacts in back and on the charge itself seems to buy us another 5k maybe, but the problem comes back.

    We have been replacing the main charge corona on most of the machines that have exhibited this issue, but last week and then again today we had 2 machines that have had full PM's done within the last 20k have the same issue.
    those 2 machines are in 2 very different environments ( a dusty construction office, and a very clean nice office) , and both are using compatible(non-oem) toners and decent quality paper.

    Because both of the 2 machines have main charge's replaced within the last 20k then fail is making me think that we might have a part quality issue from Kyocera.

    Has anyone else seen a repeat issue with this recently ??
    Tags: None
    • tcook
      Technician
      • Apr 2013
      • 37
      #2
      Re: KM-3050, 4050, 5050 - Full black pages

      I had a similar problem on a high volume FS-9530 printer (same engine as the 30/40/5050) last year. I fought it for 4 or 5 weeks, 2 or 3 times per week, then finally put OEM toner in. Haven't been back since early December.

        Comment

        • blackcat4866
          Master Of The Obvious

          Site Contributor
          10,000+ Posts
          • Jul 2007
          • 22934
          #3
          Re: KM-3050, 4050, 5050 - Full black pages

          Originally posted by tcook
          I had a similar problem on a high volume FS-9530 printer (same engine as the 30/40/5050) last year. I fought it for 4 or 5 weeks, 2 or 3 times per week, then finally put OEM toner in. Haven't been back since early December.
          That was my thought too. Go back to OEM toner. =^..^=
          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

            • Tonerkiller
              Senior Tech

              500+ Posts
              • Oct 2012
              • 665
              #4
              Re: KM-3050, 4050, 5050 - Full black pages

              I have never seen non-oem toner to be compatible.

                Comment

                • mustaq
                  Junior Member
                  • Nov 2013
                  • 4
                  #5
                  Re: KM-3050, 4050, 5050 - Full black pages

                  True its the toner, i had this same problem at one of my customers,and by using OEM toner and cleaning the main charge unit and problem went away and has not came back since then.And from that time using all OEM no Problems at all.I have noticed by using Generic toner it lower the life on parts mostly fuser unit.

                  Mustaq

                    Comment

                    • Max
                      Senior Tech

                      500+ Posts
                      • Oct 2011
                      • 546
                      #6
                      Re: KM-3050, 4050, 5050 - Full black pages

                      Also make sure that all the filters are clean especially the ones inside the bypass table.

                        Comment

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