Code 3912 on CF5500

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  • copydude
    • Mar 2025

    #1

    [Dead] Code 3912 on CF5500

    My machine is down with this code I know that it means my fuser is not gettign to 100C but it is coding as soon as it tries to start warming up. what can I do to get my baby up again?
  • bizhub1
    Trusted Tech

    Site Contributor
    100+ Posts
    • Sep 2008
    • 230

    #2
    Did you do the reset in the service mode?

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    • copydude

      #3
      Originally posted by bizhub1
      Did you do the reset in the service mode?
      I have tried but the machine codes as soon as it is powered, will not let me enter service mode. (stop 0 0 stop 0 1)

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      • Stirton.M
        All things Konica Minolta

        1,000+ Posts
        • Oct 2009
        • 1804

        #4
        open the front door, cycle the power and leave the front door open. Enter service mode via utility/counter and use the service code.

        Conversely, ensure both power switches are turned off. Turn main switch on, press and hold the utility/counter key and turn sub power switch on (the little switch on the outside). Keep holding the key and you should enter directly to tech rep this way as well. If you are prompted for a password, CE password should be 92729272.
        "Many years ago I chased a woman for almost two years, only to discover that her tastes were exactly like mine: we both were crazy about girls."
        ---Groucho Marx


        Please do not PM me for questions related to Konica Minolta hardware.
        I will not answer requests or questions there.
        Please ask in the KM forum for the benefit of others to see the question and give their input.

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