MFC8900 Constant paper Jam

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  • yormets
    Trusted Tech

    250+ Posts
    • May 2009
    • 336

    MFC8900 Constant paper Jam

    Anyone know how to check the paper sensors in service mode on this machine. I can't seem to find a service manual online anywhere. It saya paper jam under the drum, however there is no paper present.
    Thank You
  • tsbservice
    Field tech

    Site Contributor
    5,000+ Posts
    • May 2007
    • 7635

    #2
    Re: MFC8900 Constant paper Jam

    They may jam when drum is due. What about parts life?
    Vacuum it out really good and re-check. Faulty paper sensors are very rare on Brother printers.
    A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
    Blessed are they who can laugh at themselves, for they shall never cease to be amused.

    Comment

    • yormets
      Trusted Tech

      250+ Posts
      • May 2009
      • 336

      #3
      Re: MFC8900 Constant paper Jam

      It is in a constant jam state. Someone pulled out some paper from the machine. More than likely there is a broken or jammed paper sensor. Any way to check that. Physically it shows nothing.

      Comment

      • tsbservice
        Field tech

        Site Contributor
        5,000+ Posts
        • May 2007
        • 7635

        #4
        Re: MFC8900 Constant paper Jam

        Will check and reply tomorrow.
        A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
        Blessed are they who can laugh at themselves, for they shall never cease to be amused.

        Comment

        • Lance15
          Service Manager

          Site Contributor
          1,000+ Posts
          • Jun 2015
          • 1069

          #5
          Re: MFC8900 Constant paper Jam

          There must be a scrap of paper SOMEwhere in the machine that is tripping a sensor. I'm not a Brother tech, but, there's a scrap SOMEwhere. A SM would help a good bit, but, like you said, can't find it.

          This is the closest I found:



          Maybe you can figure out something from it?

          Comment

          • Phil B.
            Field Supervisor

            10,000+ Posts
            • Jul 2016
            • 22808

            #6
            Re: MFC8900 Constant paper Jam

            Doesn't that model cross to 8950?

            people have found the 8950 SM/PM from other users here.. search for 8950 issues/manuals

            mine got corrupted

            Comment

            • tsbservice
              Field tech

              Site Contributor
              5,000+ Posts
              • May 2007
              • 7635

              #7
              Re: MFC8900 Constant paper Jam

              Check your PM.
              SM and PL sent.
              Let us know.
              A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
              Blessed are they who can laugh at themselves, for they shall never cease to be amused.

              Comment

              • tsbservice
                Field tech

                Site Contributor
                5,000+ Posts
                • May 2007
                • 7635

                #8
                Re: MFC8900 Constant paper Jam

                Originally posted by Phil B.
                Doesn't that model cross to 8950?

                people have found the 8950 SM/PM from other users here.. search for 8950 issues/manuals

                mine got corrupted
                No Phil. 8900 is color model 8950 B&W.
                Manual is for following models:
                DCP- L8410CDW
                MFC- L8610CDW/L8690CDW/L8900CDW/L9570CDW
                A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
                Blessed are they who can laugh at themselves, for they shall never cease to be amused.

                Comment

                • Phil B.
                  Field Supervisor

                  10,000+ Posts
                  • Jul 2016
                  • 22808

                  #9
                  Re: MFC8900 Constant paper Jam

                  Originally posted by tsbservice
                  No Phil. 8900 is color model 8950 B&W.
                  Manual is for following models:
                  DCP- L8410CDW
                  MFC- L8610CDW/L8690CDW/L8900CDW/L9570CDW
                  thanks Bro

                  Comment

                  • tsbservice
                    Field tech

                    Site Contributor
                    5,000+ Posts
                    • May 2007
                    • 7635

                    #10
                    Re: MFC8900 Constant paper Jam

                    Originally posted by Phil B.
                    thanks Bro
                    Check your PMs Phil
                    A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
                    Blessed are they who can laugh at themselves, for they shall never cease to be amused.

                    Comment

                    • yormets
                      Trusted Tech

                      250+ Posts
                      • May 2009
                      • 336

                      #11
                      Re: MFC8900 Constant paper Jam

                      Got the service manual. All the paper sensors are turning on and off within the test mode. I looked up the last errpr code and it is 4200. Drum exceeded rotations. If that is the error why does it say paper jam under drum unit? I tried to do a factory reset, it won't reset. The manual says to press the OK key. There is no OK key. So I cannot reset to factory default. I don't want to go get a drum unit and not have it solve the error. Antone seen anything like this?

                      Comment

                      • yormets
                        Trusted Tech

                        250+ Posts
                        • May 2009
                        • 336

                        #12
                        Re: MFC8900 Constant paper Jam

                        I checked all the pAPER SENSORS IN TEST MODE AND THEY ARE ALL WORING. tHE LAST ERROR CODE IS 4200.

                        Comment

                        • tsbservice
                          Field tech

                          Site Contributor
                          5,000+ Posts
                          • May 2007
                          • 7635

                          #13
                          Re: MFC8900 Constant paper Jam

                          How much life left on drum unit?
                          I hardly believe that you cannot reset the machine to factory default. If anything work you can always try memory clear from service mode. Can you post what exactly steps you followed for reset?
                          A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
                          Blessed are they who can laugh at themselves, for they shall never cease to be amused.

                          Comment

                          • tsbservice
                            Field tech

                            Site Contributor
                            5,000+ Posts
                            • May 2007
                            • 7635

                            #14
                            Re: MFC8900 Constant paper Jam

                            Reset Your Brother Machine
                            Online User's Guide
                            A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
                            Blessed are they who can laugh at themselves, for they shall never cease to be amused.

                            Comment

                            • Phil B.
                              Field Supervisor

                              10,000+ Posts
                              • Jul 2016
                              • 22808

                              #15
                              Re: MFC8900 Constant paper Jam

                              Originally posted by yormets
                              Got the service manual. All the paper sensors are turning on and off within the test mode. I looked up the last errpr code and it is 4200. Drum exceeded rotations. If that is the error why does it say paper jam under drum unit? I tried to do a factory reset, it won't reset. The manual says to press the OK key. There is no OK key. So I cannot reset to factory default. I don't want to go get a drum unit and not have it solve the error. Antone seen anything like this?
                              IF it has exceeded rotations basically it means:
                              previous drum replacement wasn't reset and thinks this has gone overlife (with out message displayed)

                              or

                              this set is out of life and needs to be replaced.

                              the drum(s) are a very picky bunch on these units. I have had some fail w/ not even 50% life used. Brother would replace them if the EndUser has a certified tech assigned to it or the tech (preferred method) calls in the early failure and verified by PhoneTech.

                              you could pull drums... clean corona .. gears on drum(s) and inside unit. on gearing a tiny bit of Triflow on the pivot points. ( WIPE ANY SPILLED OIL ) I let the Drum(s) sit for a bit on shop towels before reinstalling


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