MX-C401 duplex jams

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  • Old Sergeant
    Technician

    Site Contributor
    • Jan 2014
    • 16
    #1

    [Jamming] MX-C401 duplex jams

    I have a Sharp MX-C401 with a MX-FN12 finisher that jams every duplex at the finisher rollers after printing one side. It will duplex fine with the finisher removed. Replaced both POD1 and POD2 in duplex without effect. I'm thinking the sensor in the finisher might be bad but can't find where this sensor is involved with duplexing or understand why one sided copying works with the finisher if this sensor is bad. Also, if it is the sensor in the finisher, I could use the part number. Any ideas would be appreciated.
    Tags: duplex jams, mx-fn12
    • ZOOTECH
      Senior member of CRS

      Site Contributor
      2,500+ Posts
      • Jul 2007
      • 3374
      #2
      Re: MX-C401 duplex jams

      Originally posted by Old Sergeant
      I have a Sharp MX-C401 with a MX-FN12 finisher that jams every duplex at the finisher rollers after printing one side. It will duplex fine with the finisher removed. Replaced both POD1 and POD2 in duplex without effect. I'm thinking the sensor in the finisher might be bad but can't find where this sensor is involved with duplexing or understand why one sided copying works with the finisher if this sensor is bad. Also, if it is the sensor in the finisher, I could use the part number. Any ideas would be appreciated.
      Check the operation of the FPGS solenoid and the paper entry guide in the finisher.
      "You can't trust your eyes, if your mind is out of focus" --

        Comment

        • hellcat
          Trusted Tech

          100+ Posts
          • Jan 2012
          • 123
          #3
          Re: MX-C401 duplex jams

          is this a new install or a machine in service awhile?

          If new make sure the finisher plate guide is installed correctly as there is a sensor there that tells it when it exits the machine and goes into the finisher, Ill check my book in the morning and post the actual diagram.

            Comment

            • Old Sergeant
              Technician

              Site Contributor
              • Jan 2014
              • 16
              #4
              Re: MX-C401 duplex jams

              Originally posted by hellcat
              is this a new install or a machine in service awhile?

              If new make sure the finisher plate guide is installed correctly as there is a sensor there that tells it when it exits the machine and goes into the finisher, Ill check my book in the morning and post the actual diagram.
              I'm not sure if it's a new finisher. It was moved into my area and wasn't duplexing when it got there. But the finisher does sort and staple, which is what has me confused as that indicates the sensors and motors are working in the finisher yet it won't duplex with the finisher attached but will with the finisher removed.

                Comment

                • Old Sergeant
                  Technician

                  Site Contributor
                  • Jan 2014
                  • 16
                  #5
                  Re: MX-C401 duplex jams

                  Originally posted by ZOOTECH
                  Check the operation of the FPGS solenoid and the paper entry guide in the finisher.
                  Sorry, I forgot to mention I checked the solenoid operation and it does seem to be working.

                    Comment

                    • faxman28
                      Trusted Tech

                      Site Contributor
                      250+ Posts
                      • Nov 2010
                      • 436
                      #6
                      Re: MX-C401 duplex jams

                      check bulletin
                      Attached Files

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