MX-2640 tray 1 not detected

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  • barber782
    Trusted Tech

    250+ Posts
    • Aug 2011
    • 271
    #1

    MX-2640 tray 1 not detected

    Hi everyone,

    I don't see sharps a lot in the field, but having an issue with one.
    Model MX-2640n, tray 1 not detected.
    Like the other trays, when you close them you hear the tray lift motor, but with this one you get nothing.
    On screen, where it shows the paper sizes of each tray its blank.
    So i'm can only guess that the Cassette existence detect PWB is faulty?
    Any advise would be appreciated.

    Cheers
    Tags: blank, detected, paper, shows, tray
    • Phil B.
      Field Supervisor

      10,000+ Posts
      • Jul 2016
      • 22808
      #2
      Re: MX-2640 tray 1 not detected

      Originally posted by barber782
      Hi everyone,

      I don't see sharps a lot in the field, but having an issue with one.
      Model MX-2640n, tray 1 not detected.
      Like the other trays, when you close them you hear the tray lift motor, but with this one you get nothing.
      On screen, where it shows the paper sizes of each tray its blank.
      So i'm can only guess that the Cassette existence detect PWB is faulty?
      Any advise would be appreciated.

      Cheers
      why look to an expensive part first? check door switches w/ multimeter.

        Comment

        • bmwmick
          Technician
          • Jul 2019
          • 27
          #3
          Re: MX-2640 tray 1 not detected

          Never had to fit a board for this fault
          Sensor on the pick roller yes
          As this is what tells the machine to start lift motor
          Or the arm on the back could be broken that brood the pick up roller when the tray is push in

          You Could try the sensor from tray 2 feed as they are the same [emoji106]


          Sent from my iPhone using Tapatalk

            Comment

            • mansart
              Senior Tech

              Site Contributor
              500+ Posts
              • Apr 2009
              • 851
              #4
              Re: MX-2640 tray 1 not detected

              Check CSS11 with SIM 30-2, CSS11 should change on the panal when you open close tray 1

              If you can see change of state switch is good

              Also check CLUD1, with SIM 30-2 also.

              This is tray 1 upper limit swith, if this is activated when tray inserted, lift motor would not activate as machine thinks tray is at upper limit.

                Comment

                • repn1999
                  Trusted Tech

                  250+ Posts
                  • May 2010
                  • 310
                  #5
                  Re: MX-2640 tray 1 not detected

                  might also help to make sure your trays are set to inch and not ab. I have seen this cause weird issues before.

                    Comment

                    • havokprod
                      Trusted Tech

                      Site Contributor
                      VIP Subscriber
                      100+ Posts
                      • Oct 2012
                      • 156
                      #6
                      Re: MX-2640 tray 1 not detected

                      I think Tray 1 does NOT Auto detect size on these machines. Set to whatever paper size you have in the tray manually, and see if that works.

                        Comment

                        • EasyRider
                          Senior Tech

                          Site Contributor
                          50+ Posts
                          • Jan 2015
                          • 85
                          #7
                          Re: MX-2640 tray 1 not detected

                          Because I've kicked myself for not looking here first... You did make sure there was no paper stuck behind Tray1 ?

                            Comment

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