konica minolta 458e error code 2557

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  • giordaxx
    Junior Member
    • Mar 2024
    • 6

    #1

    konica minolta 458e error code 2557

    Hello everyone. I've been trying to resolve a problem on a Konica Minolta Bizhub 458e for days..
    I'll explain everything briefly: once the machine runs out of toner it has loaded, instead of reloading it automatically, it jams while it's working, because when the toner is rightly missing the machine stops giving me the error 2557. Normally all the machines, once the toner stored in the developer runs out, it automatically rotates the bottle of toner present, in turn refilling the developer. The toner bottle doesn't turn for me. The strange thing is that if I manually refill the toner in the developer (therefore doing a MANUAL ADD TONER from service mode), the bottle turns and refills. Then in the test mode phase I have all completely black copies printed continuously. So the machine doesn't refill the toner at all and in the end it stops giving the error 2557 signal. I did all the necessary tests, I even tried disconnecting all the connectors (even on the cards) spraying a bit of spray on the contacts thinking maybe that this was a problem. no way.
  • tsbservice
    Field tech

    Site Contributor
    5,000+ Posts
    • May 2007
    • 7968

    #2
    Re: konica minolta 458e error code 2557

    You may want to check toner sub-hopper. Sounds like sensor there is at fault.
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    • Albonline
      Service Manager

      1,000+ Posts
      • Sep 2008
      • 1144

      #3
      Re: konica minolta 458e error code 2557

      Originally posted by tsbservice
      You may want to check toner sub-hopper. Sounds like sensor there is at fault.
      The sub hopper has a photo sensor for full detection. The design of the sub hopper is just perfect to guide spilled toner into the ps.

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      • JasonSBE
        Trusted Tech

        Site Contributor
        100+ Posts
        • Apr 2014
        • 183

        #4
        Re: konica minolta 458e error code 2557

        Originally posted by Albonline
        The sub hopper has a photo sensor for full detection. The design of the sub hopper is just perfect to guide spilled toner into the ps.

        This is the first thing I'd check. The sensor can get toner spilled on it really easily, depending on the environment.

        20240318_101145.jpg

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        • giordaxx
          Junior Member
          • Mar 2024
          • 6

          #5
          Re: konica minolta 458e error code 2557

          Originally posted by JasonSBE
          This is the first thing I'd check. The sensor can get toner spilled on it really easily, depending on the environment.

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