C1070 error C3911

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  • Konicatech
    Trusted Tech

    100+ Posts
    • Feb 2016
    • 131

    C1070 error C3911

    Got this error code and can't get it to go away, changed thermistor and temp sensor *th1 and ts1

    Cleared the code but just comes back.
  • tsbservice
    Field tech

    Site Contributor
    5,000+ Posts
    • May 2007
    • 7711

    #2
    Re: C1070 error C3911

    DC Power supply/1 ?
    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

    • Konicatech
      Trusted Tech

      100+ Posts
      • Feb 2016
      • 131

      #3
      Re: C1070 error C3911

      Something in the fuser is the cause as second fuser works OK

      Comment

      • bachirabouzeid
        Technician
        • Sep 2015
        • 17

        #4
        Re: C1070 error C3911

        Originally posted by Konicatech
        Something in the fuser is the cause as second fuser works OK
        Change the Heater Lamp A50UM31F00the temperature of the Fusing is not reaching the prescribed value.

        Comment

        • wjurls
          Trusted Tech

          Site Contributor
          250+ Posts
          • Feb 2017
          • 465

          #5
          Re: C1070 error C3911

          If you narrowed it down to the fuser itself there are only a few components involved. TH1, TS1, the lamp itself "L1" or else the wiring/connector.

          Comment

          • OverKnight
            Technician
            • Sep 2019
            • 44

            #6
            Re: C1070 error C3911

            I have the sister model c1060 with the similar code...

            Does anyone know if this code supersedes all others when starting? Codes are cleared and the fuser is disconnected from the drawer and the system still starts with C-3511. I find this odd as the door is open and instead that message should appear first, no?

            If the temperature sensors or the lamps are bad and immediately throw the code, how would it know? It's literally disconnected from the system to even register!

            My guess from research and common thinking is a possible failure of A50UR70M00, Power Supply / 1 and it's ability to code with my simple test. If I had a spare fuser, this would have been easily answered. LOL

            Short story, Friday everything was operational, Tuesday C-3511 (cold start). Not sure if it's relevant, but I found a few broken parts along the way: A50U738400, Lifting Arm /2 and A50U724101, Belt Regulating Sleeve. Both are supportive devices, but don't appear to be detrimental to operation, more for ventilation and creep. By some miracle, the parts went down to the bottom side missing the fuser roller and belt entirely.

            And here I am. :-)
            Last edited by OverKnight; 06-07-2022, 10:56 PM.

            Comment

            • OverKnight
              Technician
              • Sep 2019
              • 44

              #7
              Re: C1070 error C3911

              Originally posted by tsbservice
              DC Power supply/1 ?
              I have a post above with a c1060 issue, but I just wanted to verify if the c1070 is similar... I can only find A50UR70M00, Power Supply / 1 on the c1060 schematics. Did you mean that one, because the only other one is A50UM45200, DC Power source /2 in the same manual.

              Comment

              • OverKnight
                Technician
                • Sep 2019
                • 44

                #8
                Re: C1070 error C3911

                Just to close this and maybe help add to the solution I found with a C-3511 code...

                To clear the code I did the opposite, set it to 3-1, 1 and did a cold restart but this time went back into the Software DIPSW and then set it back to 3-1, 0. Restarted normally and test printed fine.

                Be aware of the following:

                I'm sure it was a simple thing, but I cleaned all the temp sensors and checked all the connections to be sure as well. Found more problems along the way and now its time to order more parts, but thankfully nothing expensive. LOL

                Comment

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