Biz C224e misfeed

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  • femaster
    Service Manager

    1,000+ Posts
    • May 2011
    • 1458

    #16
    Re: Biz C224e misfeed

    Originally posted by copyman
    What about scuffing up the shaft where one ways go, I use scotchbrite pad? I always do this when replacing one ways.
    I can honestly say I've almost never replaced a one way. Generally a cleaning of the one way with alcohol and scuffing of the shaft with scotchbright is all that is needed to get things back to operational. I do this every time I change out the tires.
    A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 4 years.
    My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...

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    • rrrohan
      Service Manager

      Site Contributor
      1,000+ Posts
      • Sep 2011
      • 1977

      #17
      Re: Biz C224e misfeed

      Originally posted by femaster
      I can honestly say I've almost never replaced a one way. Generally a cleaning of the one way with alcohol and scuffing of the shaft with scotchbright is all that is needed to get things back to operational. I do this every time I change out the tires.
      i dont scuff. my logic is if it helped it would come like that out of the factory

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      • femaster
        Service Manager

        1,000+ Posts
        • May 2011
        • 1458

        #18
        Re: Biz C224e misfeed

        Originally posted by rrrohan
        i dont scuff. my logic is if it helped it would come like that out of the factory
        If you want to get technical, they do come out of the factory like that. The metal shafts are not perfectly smooth from the factory, they have fine grooves in them from being turned in a metal lathe during production. The shafts eventually get "polished" completely smooth under the one ways and then the one way will begin to slip on the shaft instead of griping it. If someone were to simply clean the one way, or even replace it, it would still slip as the shaft is too smooth for the one way to get a consistently good grip on it. I bring back that slight coarseness to the shaft surface, by scuffing it with Scotchbright, which prevents the one way from slipping. By scuffing, we are not talking about creating deep gouges in the surface, only a matter of roughing up the surface a bit.

        If it didn't work I wouldn't bother doing it, as there is no point in doing more work than is necessary. If I didn't scuff the shafts the one ways will generally start slipping before the new set of tires reach half their life cycle. With scuffing, I never have to worry about them slipping at all, which means less service calls and a happier customer. Because of this, I'll continue to scuff the shafts where the one ways ride, and if not scuffing yours works for you, have at it.
        A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 4 years.
        My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...

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        • rrrohan
          Service Manager

          Site Contributor
          1,000+ Posts
          • Sep 2011
          • 1977

          #19
          Re: Biz C224e misfeed

          i get the logic i used to do it on the old C353's and C220s but havent done it since the 4 series released. i think they re designed the bearings which must of fixed it cause they used to be blue and now are all black

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          • Synaux
            Service Manager

            Site Contributor
            1,000+ Posts
            • Mar 2012
            • 1224

            #20
            Re: Biz C224e misfeed

            Well Scotchbrite (which contains both Aluminum oxide and Titanium oxide) it is rated at around 1000 grit. (google told me so).

            Those that have ever done any wet-sanding know that is not much.
            Especially on a metal shaft (in this scenario, I assume 304 stainless).

            More likely what you are accomplishing is clearing debris off the shaft:
            In particular, the metal and plastics from the bearing embedding itself into the microscopic surface of the shaft.

            In fine, there is almost no reason not to unless you forgot the scotchbrite or have sore fingers...

            (If I remember to do it, I have a few used spare shafts that I will test this theory out and post some microscope picks. And hell, if someone sends me a new shaft [not that I need one] I can put this puppy to bed )

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            • copyman
              Owner / Technician

              Site Contributor
              2,500+ Posts
              • Sep 2005
              • 4528

              #21
              Re: Biz C224e misfeed

              Just my preference, emery cloth works best out of everything I've tried.

              What ever is used the most important thing is to "sand" in direction of shaft length not "around" the shaft. You want to rough up shaft so pin bearings inside clutch grab shaft. If you sand "around" the shaft it could actually help bearings to slip.
              Last edited by copyman; 07-12-2021, 12:18 AM.

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              • srvctec
                Former KM Senior Tech

                500+ Posts
                • Oct 2009
                • 827

                #22
                Re: Biz C224e misfeed

                Originally posted by copyman
                Just my preference, emery cloth works best out of everything I've tried.

                What ever is used the most important thing is to "sand" in direction of shaft length not "around" the shaft. You want to rough up shaft so pin bearings inside clutch grab shaft. If you sand "around" the shaft it could actually help bearings to slip.
                That's exactly the opposite of what we've found. Since the shafts all come from the factory with micro grooves in them from the machining process, we sand around the shaft to put it back to factory like condition. We tried sanding along the shaft with the logic you have but found that it caused a ridiculous amount of jams and when sanding back to like the factory, the issue was solved.
                Started in the copier service business in the fall of 1988 and worked at the same company for 33.5 years, becoming the senior tech in 2004 but left to pursue another career on 4/29/22.

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                • copyman
                  Owner / Technician

                  Site Contributor
                  2,500+ Posts
                  • Sep 2005
                  • 4528

                  #23
                  Re: Biz C224e misfeed

                  Originally posted by srvctec
                  That's exactly the opposite of what we've found. Since the shafts all come from the factory with micro grooves in them from the machining process, we sand around the shaft to put it back to factory like condition. We tried sanding along the shaft with the logic you have but found that it caused a ridiculous amount of jams and when sanding back to like the factory, the issue was solved.
                  Sanding along the shaft was what they teach at Konica Minolta factory training school. Appreciate the advice but have to keep doing what has been working for me. Been doing it for many years and never had an issue.

                  Comment

                  • Synaux
                    Service Manager

                    Site Contributor
                    1,000+ Posts
                    • Mar 2012
                    • 1224

                    #24
                    Re: Biz C224e misfeed

                    Originally posted by srvctec
                    That's exactly the opposite of what we've found. Since the shafts all come from the factory with micro grooves in them from the machining process, we sand around the shaft to put it back to factory like condition. We tried sanding along the shaft with the logic you have but found that it caused a ridiculous amount of jams and when sanding back to like the factory, the issue was solved.
                    Random thought.... Probably a helical pattern (in the right direction) is the most appropriate.

                    Comment

                    • srvctec
                      Former KM Senior Tech

                      500+ Posts
                      • Oct 2009
                      • 827

                      #25
                      Re: Biz C224e misfeed

                      Originally posted by copyman
                      Sanding along the shaft was what they teach at Konica Minolta factory training school. Appreciate the advice but have to keep doing what has been working for me. Been doing it for many years and never had an issue.
                      I'm KonicaMinolta factory trained on a crapload of machines and have never seen it taught that way in class, to sand along the shaft.

                      BTW, I wasn't giving advice but just stating what works for us and has for decades which is the way we'll continue to do it. We don't have to agree, you know.

                      Originally posted by Synaux
                      Random thought.... Probably a helical pattern (in the right direction) is the most appropriate.
                      Probably so!
                      Started in the copier service business in the fall of 1988 and worked at the same company for 33.5 years, becoming the senior tech in 2004 but left to pursue another career on 4/29/22.

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                      • copyman
                        Owner / Technician

                        Site Contributor
                        2,500+ Posts
                        • Sep 2005
                        • 4528

                        #26
                        Re: Biz C224e misfeed

                        Originally posted by srvctec
                        I'm KonicaMinolta factory trained on a crapload of machines and have never seen it taught that way in class, to sand along the shaft.

                        BTW, I wasn't giving advice but just stating what works for us and has for decades which is the way we'll continue to do it. We don't have to agree, you know.



                        Probably so!
                        I agree it's ok not to agree
                        Will keep in mind if way I've been doing it ever doesn't work. Options are always good to have.

                        Only thing techs can do on this forum is post what works for them. Most techs have their way of doing things. So if a few different methods of doing something is posted it's up to the reader to try them and see what works best for them. Either way I think it's a valuable tool for fellow techs!

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