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  1. #1
    Senior Tech 100+ Posts
    Konica Minolta C652 - black toner issue

    Kenny's Avatar
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    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.

  2. #2
    Field Supervisor 500+ Posts Bix's Avatar
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    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.

  3. #3
    Senior Tech 100+ Posts
    Konica Minolta C652 - black toner issue

    Kenny's Avatar
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    Re: Konica Minolta C652 - black toner issue

    Quote Originally Posted by Bix View Post
    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!

  4. #4
    Field Supervisor 500+ Posts Bix's Avatar
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    Re: Konica Minolta C652 - black toner issue


  5. #5
    Service Manager 1,000+ Posts
    Konica Minolta C652 - black toner issue


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    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 Attached Files

  6. #6
    Service Manager 1,000+ Posts tsbservice's Avatar
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    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.

  7. #7
    Service Manager 1,000+ Posts
    Konica Minolta C652 - black toner issue


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    Re: Konica Minolta C652 - black toner issue

    Quote Originally Posted by tsbservice View Post
    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.

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