HP CLJ9500 exits paper to wrong finisher tray

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  • Deer John
    Technician
    • Aug 2013
    • 21
    #1

    HP CLJ9500 exits paper to wrong finisher tray

    Bizarre....This networked MFP randomly delivers jobs, (sometime in the middle of one) to the top tray in reverse order. As if an invertor solenoid or gate was sticking open. Began when another company replaced the finisher exit roller assy. Other company then suggested firmware update...customer updated firmware.Problem disappeared for a week or so...came back...they call us.. So... I replaced the whole 3000 sheet staple stacker (#c8085a) Problem disappeared for 2 weeks and has returned. Considering an exorcism but would entertain better ideas.
    Tags: None
    • Wild Bill
      Senior Tech

      500+ Posts
      • Jul 2005
      • 774
      #2
      Re: HP CLJ9500 exits paper to wrong finisher tray

      Just a thought; Lets say it is not the stacker causing the problem. What would cause this on the machine side?
      Possible DC Controller? What controls the signal to switch those gates? Just throwing that out there.
      Izzy

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        • Iowatech
          Not a service manager

          2,500+ Posts
          • Dec 2009
          • 3933
          #3
          Re: HP CLJ9500 exits paper to wrong finisher tray

          You might check the rubber pads for the solenoids and their linkages in that area. If the rubber pads are sticky enough, they can prevent the solenoid from releasing in time to let the paper exit into the proper tray.

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