Bizhub C253 K toner port blocking

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  • aAandy
    Trusted Tech

    Site Contributor
    250+ Posts
    • Apr 2012
    • 356
    #1

    Bizhub C253 K toner port blocking

    hello everyone

    this machines' K toner port is blocking up causing a horrid clicking sound in the toner/waste toner drive system - vacuum out the toner and she runs for a while before blocking up again! vacuumed from the top after removing the toner bottle and from the bottom by manually opening the spring loaded toner port. it seems to me the port augers are working, because once the toner is vacuumed the clicking sound stops as the augers are again free to move

    it looks like a very big job to dismantle the machine and remove the K toner supply port assembly (to either repair or replace) but i was wondering if anyone has a quicker solution?

    any and all tips warmly welcomed before i go stripping half the machine to get to that port

    thanks in advance!!
    Tags: augers, blocking, port, toner
    • copyman
      Owner / Technician

      Site Contributor
      2,500+ Posts
      • Sep 2005
      • 4213
      #2
      Re: Bizhub C253 K toner port blocking

      Are you sure it's exclusive to the black. There is a known issue with the waste system getting blocked up and you are right the machine has to be torn down to get to it. It is such a big job many junk the machine at that point.

      Sorry wish I had better news. Perhaps someone else has a fix for something not as bad.

        Comment

        • aAandy
          Trusted Tech

          Site Contributor
          250+ Posts
          • Apr 2012
          • 356
          #3
          Re: Bizhub C253 K toner port blocking

          Originally posted by copyman
          Are you sure it's exclusive to the black. There is a known issue with the waste system getting blocked up and you are right the machine has to be torn down to get to it. It is such a big job many junk the machine at that point.

          Sorry wish I had better news. Perhaps someone else has a fix for something not as bad.
          yes, only K toner supply port is blocking and jamming the toner supply/waste toner drive - i've dismantled quite a few to fix the waste toner problem and can sort that in under 2 hours, but getting to that port looks like a nightmare

          hopefully someone else will read this who has repaired this fault before

          thanks for your post!!

            Comment

            • tsbservice
              Field tech

              Site Contributor
              5,000+ Posts
              • May 2007
              • 7635
              #4
              Re: Bizhub C253 K toner port blocking

              I don't know this machines but from what I've seen in manuals you have to clean somehow K toner supply tube/pipe. It may be clogged with caked toner and its useful capacity to transfer toner reduced.
              Maybe you can reach out from one side and push in through something like cable tie or wire to clear some more space for toner flow.
              A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
              Blessed are they who can laugh at themselves, for they shall never cease to be amused.

                Comment

                • emujo2
                  Service Manager

                  1,000+ Posts
                  • Mar 2017
                  • 1580
                  #5
                  Re: Bizhub C253 K toner port blocking

                  We don't have any of these anymore, but my guys were inventing numerous types of auger systems to allow them to break the toner clumps up and then sucking them out..Another problem KM induced when they started using the cost saving PPLM and b&W default settings..In some cases color was never used and the toner becomes concrete..I think if you can get to the pipes on the rear side you can break up the clumps..Either way, there are no procedures for this, take plenty of pics.

                    Comment

                    • bbrain
                      Technician

                      Site Contributor
                      • Mar 2020
                      • 17
                      #6
                      Re: Bizhub C253 K toner port blocking

                      Originally posted by aAandy
                      hello everyone

                      this machines' K toner port is blocking up causing a horrid clicking sound in the toner/waste toner drive system - vacuum out the toner and she runs for a while before blocking up again! vacuumed from the top after removing the toner bottle and from the bottom by manually opening the spring loaded toner port. it seems to me the port augers are working, because once the toner is vacuumed the clicking sound stops as the augers are again free to move

                      it looks like a very big job to dismantle the machine and remove the K toner supply port assembly (to either repair or replace) but i was wondering if anyone has a quicker solution?

                      any and all tips warmly welcomed before i go stripping half the machine to get to that port

                      thanks in advance!!
                      Hi, sent you PM.

                        Comment

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