Ricoh 7503 code 14 jams.

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  • Free-coh
    Technician
    • Apr 2015
    • 33
    #1

    Ricoh 7503 code 14 jams.

    First time seeing this particular machine but have been servicing them for years. PCU bound up due to recycle tube shutter mistakenly left closed (I didn't do it!) lol...anyway, replaced lower drum unit now I am getting frequent code 14 (fusing unit exit late). Steps taken, cleaned registration sensor, relay sensor, regis. roller. Sometimes sheet makes it into fuser, sometimes ends up on top of duplex unit? strange. duplex mode is even worse...I am suspecting transfer belt either slipping drive or worn out to the point of not attracting paper. PM counter reads 840k on belt but we inherited machine so not sure. ordered belt and blade but would like to hear some opinions on this...TIA.
    Tags: belt, duplex, sensor, unit
    • slimslob
      Retired

      Site Contributor
      25,000+ Posts
      • May 2013
      • 37047
      #2
      Re: Ricoh 7503 code 14 jams.

      Originally posted by Free-coh
      First time seeing this particular machine but have been servicing them for years. PCU bound up due to recycle tube shutter mistakenly left closed (I didn't do it!) lol...anyway, replaced lower drum unit now I am getting frequent code 14 (fusing unit exit late). Steps taken, cleaned registration sensor, relay sensor, regis. roller. Sometimes sheet makes it into fuser, sometimes ends up on top of duplex unit? strange. duplex mode is even worse...I am suspecting transfer belt either slipping drive or worn out to the point of not attracting paper. PM counter reads 840k on belt but we inherited machine so not sure. ordered belt and blade but would like to hear some opinions on this...TIA.
      Should also replace discharge plate and transfer cleaning roller. One other thing, fusing exit sensor are known for hysteresis problems as they age. Both reed switches and photo interrupters will eventually get to where they delay changing state when hot. It is only a few milliseconds but enough to be read as a jam.

        Comment

        • TonerMunkeh
          Professional Moron

          2,500+ Posts
          • Apr 2008
          • 3865
          #3
          Re: Ricoh 7503 code 14 jams.

          Depending on the mileage of the machine the registration mylars could also be knackered.
          It's 106 miles to Chicago. We've got a full tank of gas, half a pack of cigarettes, it's dark and we're wearing sunglasses.

          Hit it.

            Comment

            • MIKON
              Trusted Tech

              100+ Posts
              • Jul 2015
              • 185
              #4
              Re: Ricoh 7503 code 14 jams.

              I would check drum pick off claws and transport belt

                Comment

                • luca72
                  Field Supervisor

                  1,000+ Posts
                  • Oct 2017
                  • 1710
                  #5
                  Re: Ricoh 7503 code 14 jams.

                  Originally posted by Free-coh
                  First time seeing this particular machine but have been servicing them for years. PCU bound up due to recycle tube shutter mistakenly left closed (I didn't do it!) lol...anyway, replaced lower drum unit now I am getting frequent code 14 (fusing unit exit late). Steps taken, cleaned registration sensor, relay sensor, regis. roller. Sometimes sheet makes it into fuser, sometimes ends up on top of duplex unit? strange. duplex mode is even worse...I am suspecting transfer belt either slipping drive or worn out to the point of not attracting paper. PM counter reads 840k on belt but we inherited machine so not sure. ordered belt and blade but would like to hear some opinions on this...TIA.
                  Isn't it that someone has mounted the transfer unit with the lifting lever upside down? look on another martini, if by operating the blue lever, it goes up in the direction different/overturned from yours
                  "loneliness is an invention of the white man, when we are alone we talk to everything around us, we are never alone" (Ojibwa)

                    Comment

                    • Free-coh
                      Technician
                      • Apr 2015
                      • 33
                      #6
                      Re: Ricoh 7503 code 14 jams.

                      Just got back to this machine...Replaced transfer belt and blade and set all voltages to the paper chart specs included with belt. No go! still jams and now output is very light in areas. Lucky enough to be able to ensure it is in the belt unit by temp. swapping it with same model machine and quality looks great. Ordered Transfer unit power pack and harness.

                        Comment

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