HP-(CLJ)8550N No op-panel display

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  • John Sasser
    Technician
    • Mar 2011
    • 37

    #1

    [Electrical] HP-(CLJ)8550N No op-panel display

    No op-panel display.HOWEVER-When I take the top cover (with same op panel attached) & install it on a different printer (same model), it works correctly, so I know the op-panel assembly is ok. What should I check next? Thanks for your time & help. J Sasser,
    Last edited by John Sasser; 04-05-2011, 06:21 PM. Reason: I hit the wrong keys sorry
  • prntrfxr
    Service Manager

    1,000+ Posts
    • Apr 2008
    • 1622

    #2
    Was the memory or firmware removed from the formatter? If the memory & firmware are good, then the formatter is bad.
    Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well-preserved body, but rather to skid in sideways - Coke in one hand - chocolate in the other - body thoroughly used up, totally worn out and screaming "WOO-HOO, what a ride!".

    Comment

    • JustManuals
      Field Supervisor

      5,000+ Posts
      • Jan 2006
      • 9838

      #3
      This Parts & Service manual can now be purchased for $12.77 and downloaded immediately after payment from
      Just Manuals | The Internet's largest selection of manuals | Instant Downloads


      Paul@justmanuals.com

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      • John Sasser
        Technician
        • Mar 2011
        • 37

        #4
        Paul, I will let you know if I decide to buy a service manual on anything. I dont have any credit so you dont need to generate an e-mail for me every time I post a question. Thankyou for your servive J Sasser,

        Comment

        • The Fixer
          Technician
          • Dec 2005
          • 22

          #5
          Have you tried the formatter in the other unit? Re-seat all connections on the DC cont.

          Comment

          • John Sasser
            Technician
            • Mar 2011
            • 37

            #6
            SIR, I dont know what a formatter is -where its located or even what it looks like. Can I have a clue PLEASE?

            Comment

            • techzone
              Technician
              • Apr 2011
              • 10

              #7
              formatter is the main board of the printer. kinda like the mother board. heres the part # HP C7096-69006

              Comment

              • prntrfxr
                Service Manager

                1,000+ Posts
                • Apr 2008
                • 1622

                #8
                It's the board you plug the parallel cable, firmware and memory DIMM's go into as well. If you are not a tech, I would advise getting one at this point.
                Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well-preserved body, but rather to skid in sideways - Coke in one hand - chocolate in the other - body thoroughly used up, totally worn out and screaming "WOO-HOO, what a ride!".

                Comment

                • John Sasser
                  Technician
                  • Mar 2011
                  • 37

                  #9
                  ok thanks,

                  Comment

                  • John Sasser
                    Technician
                    • Mar 2011
                    • 37

                    #10
                    ok thanks friend,

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