Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

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  • General Copiers
    Technician
    • Feb 2020
    • 24

    #1

    [Misc] Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

    Hi guys, we have a lot of Ricoh MP5500/6001/7000/7500 series.


    Sometimes they have this problem:
    The amount of developer inside the development unit decreases and it's attracted to the drum.
    A large quantity of developer also accumulates under the cleaning blade, causing damage to the drum.


    Has this happened to any of you? How can it be fixed?
    Thank you very much
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  • luca72
    Field Supervisor

    1,000+ Posts
    • Oct 2017
    • 1600

    #2
    Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

    Originally posted by General Copiers
    Hi guys, we have a lot of Ricoh MP5500/6001/7000/7500 series.


    Sometimes they have this problem:
    The amount of developer inside the development unit decreases and it's attracted to the drum.
    A large quantity of developer also accumulates under the cleaning blade, causing damage to the drum.


    Has this happened to any of you? How can it be fixed?
    Thank you very much

    how many prints does the machine have? when was the developer last changed? or the opc kit?
    "loneliness is an invention of the white man, when we are alone we talk to everything around us, we are never alone" (Ojibwa)

    Comment

    • General Copiers
      Technician
      • Feb 2020
      • 24

      #3
      Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

      Originally posted by luca72
      how many prints does the machine have? when was the developer last changed? or the opc kit?
      On the last machine that had the problem, an MP5500, we changed the drum, cleaning blade and developer on 15 February.
      Then the problem happened and on the 23rd we had to put a new developer, after 18,000 pages.


      This MP5500 has a total of 3,650,000.
      We only use original toner and developer. The problem occurs with both original or oem drums and cleaning blades.

      Comment

      • luca72
        Field Supervisor

        1,000+ Posts
        • Oct 2017
        • 1600

        #4
        Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

        Originally posted by General Copiers
        On the last machine that had the problem, an MP5500, we changed the drum, cleaning blade and developer on 15 February.
        Then the problem happened and on the 23rd we had to put a new developer, after 18,000 pages.


        This MP5500 has a total of 3,650,000.
        We only use original toner and developer. The problem occurs with both original or oem drums and cleaning blades.
        ok .... 3650k is a lot, I think the development group is a walking dead, the magnetic roller in particular.
        however put it on the table and you turn the knob with your hands, and check how it behaves at the sealing level, and that there are no leaks from the rear sealing bush where there is the magnetic roller gear
        "loneliness is an invention of the white man, when we are alone we talk to everything around us, we are never alone" (Ojibwa)

        Comment

        • MIKON
          Trusted Tech

          100+ Posts
          • Jul 2015
          • 180

          #5
          Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

          sounds like you need a new developer unit I had several with over 10 mil on them

          Comment

          • slimslob
            Retired

            Site Contributor
            25,000+ Posts
            • May 2013
            • 35657

            #6
            Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

            With those all being older models, you most likely have excessively worn shaft seals. They probably also have had problems with developer/toner getting on the first feed module. In fact I have a feeling that you have already had to replace one-way gears on the feed module as a result of paper jamming.

            Comment

            • rthonpm
              Field Supervisor

              2,500+ Posts
              • Aug 2007
              • 2852

              #7
              Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

              Without fail, I'd replace the developer unit on these every 1-1.5 million pages as beyond that I'd start to have developer seeping into the feed stations. My profile pic is from an old 2075 that I had to rebuild the feed stations on the first two trays thanks to developer contamination.

              Comment

              • luca72
                Field Supervisor

                1,000+ Posts
                • Oct 2017
                • 1600

                #8
                Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

                Originally posted by slimslob
                With those all being older models, you most likely have excessively worn shaft seals. They probably also have had problems with developer/toner getting on the first feed module. In fact I have a feeling that you have already had to replace one-way gears on the feed module as a result of paper jamming.
                True! After 800k prints,
                this problem can occur, I have found that it happens from model 9000 upwards, perhaps the material of the bushings yields as the speed of the machine increases (?)
                Infact, i put a cover over the station zone, with a short strip of magnetic adesive cuttable, that catch and keep the falled developer, and protect the espensive martini pick up station.

                IMG_20210621_155348.jpg IMG_20210621_155348.jpg IMG_20210621_155152.jpg
                "loneliness is an invention of the white man, when we are alone we talk to everything around us, we are never alone" (Ojibwa)

                Comment

                • emiliorsg
                  Trusted Tech

                  100+ Posts
                  • Jul 2018
                  • 141

                  #9
                  Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

                  Originally posted by luca72
                  True! After 800k prints,
                  this problem can occur, I have found that it happens from model 9000 upwards, perhaps the material of the bushings yields as the speed of the machine increases (?)
                  Infact, i put a cover over the station zone, with a short strip of magnetic adesive cuttable, that catch and keep the falled developer, and protect the espensive martini pick up station.

                  [ATTACH=CONFIG]52296[/ATTACH] [ATTACH=CONFIG]52296[/ATTACH] [ATTACH=CONFIG]52297[/ATTACH]
                  I think all do it too.
                  I would try to change the seals of the PCU and the cleaning brush.

                  Comment

                  • Gift
                    Service Manager

                    1,000+ Posts
                    • Mar 2011
                    • 2439

                    #10
                    Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

                    Originally posted by luca72
                    True! After 800k prints,
                    this problem can occur, I have found that it happens from model 9000 upwards, perhaps the material of the bushings yields as the speed of the machine increases (?)
                    Infact, i put a cover over the station zone, with a short strip of magnetic adesive cuttable, that catch and keep the falled developer, and protect the espensive martini pick up station.

                    [ATTACH=CONFIG]52296[/ATTACH] [ATTACH=CONFIG]52296[/ATTACH] [ATTACH=CONFIG]52297[/ATTACH]
                    Another Luca Mod, very nice^^ We're going to test your jogger roller mod tomorrow with a SR3210 btw

                    Comment

                    • Codex
                      Senior Tech

                      500+ Posts
                      • May 2008
                      • 688

                      #11
                      Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

                      Originally posted by luca72
                      True! After 800k prints,
                      this problem can occur, I have found that it happens from model 9000 upwards, perhaps the material of the bushings yields as the speed of the machine increases (?)
                      Infact, i put a cover over the station zone, with a short strip of magnetic adesive cuttable, that catch and keep the falled developer, and protect the espensive martini pick up station.

                      [ATTACH=CONFIG]52296[/ATTACH] [ATTACH=CONFIG]52296[/ATTACH] [ATTACH=CONFIG]52297[/ATTACH]
                      we had the same problem years ago, and we did exact the same!!
                      Memento Audere Semper

                      Comment

                      • satins
                        Technician

                        Site Contributor
                        50+ Posts
                        • Feb 2021
                        • 89

                        #12
                        Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

                        It will be a good option to replace the development module and
                        you could also look to replace the LED array that sits on top of drum in the drum unit.


                        B234 2270 LED Array

                        Thanks

                        Comment

                        • orestesp
                          Trusted Tech

                          Site Contributor
                          100+ Posts
                          • Sep 2019
                          • 211

                          #13
                          Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

                          Sorry to "hijack" the thread, so to speak, but what parts that can be ordered from Ricoh do you guys, from experience, replace preventatively in order to keep the developing unit functioning for as long as possible and prevent the spillage of developer everywhere?

                          I have heard that the all 4 x 8mm bushings should be replaced every other developer change (assuming they are done at 350-400k), is there anything else?

                          Comment

                          • satins
                            Technician

                            Site Contributor
                            50+ Posts
                            • Feb 2021
                            • 89

                            #14
                            Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

                            Originally posted by orestesp
                            Sorry to "hijack" the thread, so to speak, but what parts that can be ordered from Ricoh do you guys, from experience, replace preventatively in order to keep the developing unit functioning for as long as possible and prevent the spillage of developer everywhere?

                            I have heard that the all 4 x 8mm bushings should be replaced every other developer change (assuming they are done at 350-400k), is there anything else?
                            If you are using the genuine toner,you may not need to change the bushings or anything else.
                            However, if you use Compatible toner you may need to replace the developer agitator bushing every 200k-400k cycle and the worst case scenario can have a spillover effect on the paper registration and feeding unit down below.
                            So, be careful with the compatible toner!

                            Comment

                            • slimslob
                              Retired

                              Site Contributor
                              25,000+ Posts
                              • May 2013
                              • 35657

                              #15
                              Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

                              Originally posted by satins
                              If you are using the genuine toner,you may not need to change the bushings or anything else.
                              However, if you use Compatible toner you may need to replace the developer agitator bushing every 200k-400k cycle and the worst case scenario can have a spillover effect on the paper registration and feeding unit down below.
                              So, be careful with the compatible toner!
                              Maybe that is why I never had to replace bushings or anything else even though I had machines go over 5M before being traded in. And continue to work at another placement. Always used Genuine Ricoh and always did PMs within 5 % over recommended. Now the conductive bearing in the drum shaft holder were another thing. Replaced a couple of holders until some one posted the part number for the bearing here on CTN.

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