Toshiba e-studio 451c with MJ-1023 Finisher Issue

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  • DaveCarpenter
    • Jun 2025
    #1

    Toshiba e-studio 451c with MJ-1023 Finisher Issue

    Have a CB30 error code, relating to the finisher.....have been told to either replace the tray lift motor or repair a broken wire. The tray still moves during test when turned on...can anyone collaborate this claim or is there another issue involved?

    And does anyone have the correct wiring diagram for the motor to the controller board?
    Tags: 102, 1023, 1028, 451c, broken, code, controller, e-studio, error, error code, finisher, issu, issue, lift, lift motor, motor, pause, repair, replace, roller, studio, test, toshiba, tray, wire
    • Oystercopy
      Senior Tech

      Site Contributor
      500+ Posts
      • Oct 2009
      • 623
      #2
      Are BOTH trays moving? If only one, then you may have a bad motor. I have a troubleshooting guide somewhere, but it's for the MJ-1027/1028 finishers.
      OC

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        • DaveCarpenter
          #3
          yes, both move at system startup and then after a 2 second pause, CB30 appears on display with error beeps.

            Comment

            • ivovb
              Senior Tech

              500+ Posts
              • Apr 2008
              • 695
              #4
              Check how swing assembly works - mechanically; clean sensors - opto-couples; motors in test mode.

              BR
              I'll never ask if I didn't check user manual, service manual, parts list, BSI/TNI/TAD... web, existing threads.

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                • Mr Spock
                  Vulcan Inventor of Death

                  1,000+ Posts
                  • Aug 2006
                  • 2064
                  #5
                  If this is the post on the other site about solder the motor leads then you do not need a wiring diagram the cracked lead is on the control pwb attached to the motor. The solder joint cracks and just need to be re done. Just pull the motor look at the under side and lightly try to move the wires at the board and you will see which is loose. I have done this on occasion and never had a problem. It is usually when the motor is trying to reverse directions to move from the home position and does not move or does not move fast enough. Also this is primarily on the lower tray that I have seen this.
                  And Star Trek was just a tv show...yeah right!

                    Comment

                    • DaveCarpenter
                      #6
                      Well, first of all, there is no PCB on the shift motors! And when i unplug the trays from the control PCB, still get the CB30 Code. Possibly bad control board? anyone else with any ideas?

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