Sharp mxm-850

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  • mabro1974
    Technician
    • Feb 2013
    • 39
    #1

    [Electrical] Sharp mxm-850

    Hi there i have a sharp mxm-850 with an attatched mxlcx6 lcc but the problem is is that the copier does not recognise the lcc....it hasnt been plugged in or out with power on and there is a red led blinking on the board of the lcc.....any ideas please
    Tags: 850, blinking, copier, lcc, mxm, plugged, power, red, sharp
    • Akitu
      Legendary Frost Spec Tech

      Site Contributor
      2,500+ Posts
      • Oct 2010
      • 2596
      #2
      Re: Sharp mxm-850

      Make sure the LCC is firmly attached and the locking screw is in the correct position.

      I've done fairly similarly stupid things with LCCs on other machines, and at times it has (at a glance) appeared to be properly seated, but wouldn't read. Turns out the glance was too quick and it was in fact, not.
      Cthulhu for president! Why settle for the lesser evil?

        Comment

        • mabro1974
          Technician
          • Feb 2013
          • 39
          #3
          Re: Sharp mxm-850

          tried that and all good....it doesnt even show on the display that there is one connected

            Comment

            • JustManuals
              Field Supervisor

              5,000+ Posts
              • Jan 2006
              • 9919
              #4
              Re: Sharp mxm-850

              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

                Comment

                • ZOOTECH
                  Senior member of CRS

                  Site Contributor
                  2,500+ Posts
                  • Jul 2007
                  • 3383
                  #5
                  Re: Sharp mxm-850

                  Originally posted by mabro1974
                  tried that and all good....it doesnt even show on the display that there is one connected
                  Had one of these that the "lock release screw" was still tight, not loose like it should be for normal operation. The LCC looked like it was secure but the micro switch at the rear could not trip, because of the lock mechanism, to indicate the LCC's presence.
                  In diagnostics the tray would lift, but would not otherwise in the copy mode.
                  From the install manual:

                  "* If the screw is tight, the tray will not be locked."
                  "You can't trust your eyes, if your mind is out of focus" --

                    Comment

                    • Akitu
                      Legendary Frost Spec Tech

                      Site Contributor
                      2,500+ Posts
                      • Oct 2010
                      • 2596
                      #6
                      Re: Sharp mxm-850

                      Check the secondary power cable. In all regions other than North America, the MXM850 has 2 power cables... One for the engine, one for any peripheral devices (LCC, finisher etc). Its very easy for the secondary power cable to be turned off, leaving only the engine detected and shown on the panel. Even with a flashing light on the LCC PWB, if the secondary power is off, there'll be no peripheral devices shown.

                      Check 22-10 to see if the LCC is detected.

                      This only occurs on the 850, as the 950/1100 share a single power supply.
                      Cthulhu for president! Why settle for the lesser evil?

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