Konica Minolta C652 - black toner issue

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  • Kenny
    Senior Tech

    Site Contributor
    500+ Posts
    • Jun 2009
    • 506
    #1

    Konica Minolta C652 - black toner issue

    Hi guys,

    We seem to having an issue with one of our C652s. The black toner level on this machine always says it is low and then says replace toner. We have replaced the toner multiple times, we have managed to get it to say its full then after about a day its says its low and then replace toner again. The machine is on the latest firmware.

    We have replaced the following:

    Black toner with a Genuine x2
    Toner Hopper Unit x2
    PRCB
    Black drum and Developing unit

    Any suggestions would be helpful.
    Tags: black, issue, low, toner
    • Bix
      Service Manager

      1,000+ Posts
      • Apr 2018
      • 1421
      #2
      Re: Konica Minolta C652 - black toner issue

      Hi, it's a known "problem" in Konica Minolta machines.


      This is because there is no real sensor that quantifies the actual amount of toner. The best solution is to replace the toner only when it ends completely. In this way, the printer will adjust again.


      There are also dipswitches for reset, but at the moment I don't know if they work with C652.

        Comment

        • Kenny
          Senior Tech

          Site Contributor
          500+ Posts
          • Jun 2009
          • 506
          #3
          Re: Konica Minolta C652 - black toner issue

          Originally posted by Bix
          Hi, it's a known "problem" in Konica Minolta machines.


          This is because there is no real sensor that quantifies the actual amount of toner. The best solution is to replace the toner only when it ends completely. In this way, the printer will adjust again.


          There are also dipswitches for reset, but at the moment I don't know if they work with C652.
          Thanks for the reply,

          The machine does say it has ran out of toner and is empty when we first came to this issue, then we replace it but like I say it goes back to low toner after a day

          Could possibly try those software switches? will try anything at this moment haha!

            Comment

            • Bix
              Service Manager

              1,000+ Posts
              • Apr 2018
              • 1421
              #4
              Re: Konica Minolta C652 - black toner issue

              Hi,

              see this:               Wrong toner indicator bizhub 227

                Comment

                • copyman
                  Owner / Technician

                  Site Contributor
                  2,500+ Posts
                  • Sep 2005
                  • 4213
                  #5
                  Re: Konica Minolta C652 - black toner issue

                  What version F/W is in machine? I searched knowledge base and this is special F/W for toner levels, fluctuates from proper level to zero. F/w should be GZZ D6

                  Also see attachment addressing this issue
                  Attached Files

                    Comment

                    • tsbservice
                      Field tech

                      Site Contributor
                      5,000+ Posts
                      • May 2007
                      • 7635
                      #6
                      Re: Konica Minolta C652 - black toner issue

                      It may be toner bottle drive or motor, easy to see. Check the new toner weight, if full but there is low toner message on the machine, drive is faulty. Or you can mark bottle and run toner motor in Load check, just a couple of ideas.
                      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

                        • copyman
                          Owner / Technician

                          Site Contributor
                          2,500+ Posts
                          • Sep 2005
                          • 4213
                          #7
                          Re: Konica Minolta C652 - black toner issue

                          Originally posted by tsbservice
                          It may be toner bottle drive or motor, easy to see. Check the new toner weight, if full but there is low toner message on the machine, drive is faulty. Or you can mark bottle and run toner motor in Load check, just a couple of ideas.
                          Good call, I believe the attached bulletin I posted is for the btl drive.

                            Comment

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