BH-C-xx8 series, noisy after market drums

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  • Hansoon
    Field Supervisor

    Site Contributor
    2,500+ Posts
    • Sep 2007
    • 3321

    BH-C-xx8 series, noisy after market drums

    Until now I do rebuilding of all drum units for all the older generations up to the BH-C-xx4e series with success and saving lots of money with it. I want to start now rebuilding also the drum units for the BH-C-xx8 series, but I have heard from a colleague that after market drums sometimes are noisy for these series. Is this a well known issue, guys?

    Hans
    " Sent from my Intel 80286 using MS-DOS 2.0 "
  • copyman
    Owner / Technician

    Site Contributor
    2,500+ Posts
    • Sep 2005
    • 4334

    #2
    Re: BH-C-xx8 series, noisy after market drums

    Originally posted by Hansoon
    Until now I do rebuilding of all drum units for all the older generations up to the BH-C-xx4e series with success and saving lots of money with it. I want to start now rebuilding also the drum units for the BH-C-xx8 series, but I have heard from a colleague that after market drums sometimes are noisy for these series. Is this a well known issue, guys?

    Hans
    I've rebuilt many 8 series drums so far and no issues. I use new drum, cleaning blade, PCR & PCR cleaning roller. All aftermarket parts from Copylite Products. Much easier to rebuild then the 4 series with not having to mess with a sawtooth charger.
    Perhaps it's the supplier why they are noisy? PM me if you want to try the parts from my supplier, we can make arrangements to get them to you.

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    • Hansoon
      Field Supervisor

      Site Contributor
      2,500+ Posts
      • Sep 2007
      • 3321

      #3
      Re: BH-C-xx8 series, noisy after market drums

      Originally posted by copyman
      I've rebuilt many 8 series drums so far and no issues. I use new drum, cleaning blade, PCR & PCR cleaning roller. All aftermarket parts from Copylite Products. Much easier to rebuild then the 4 series with not having to mess with a sawtooth charger.
      Perhaps it's the supplier why they are noisy? PM me if you want to try the parts from my supplier, we can make arrangements to get them to you.
      Thanks! Have no BH-C-xx8 series yet but want to be prepared. (YES! I'm still that backward.....)

      Are the drums you are using heavy? The good ones I use for the BH-C-xx4(e) series are more heavy in their weight than the usual after market stuff, which is perhaps the reason I never faced this noise issue, that is btw I believe to be caused by vibration of the drum core.

      Hans
      " Sent from my Intel 80286 using MS-DOS 2.0 "

      Comment

      • CP-1015
        Trusted Tech

        Site Contributor
        250+ Posts
        • Nov 2020
        • 288

        #4
        Re: BH-C-xx8 series, noisy after market drums

        Originally posted by Hansoon
        Until now I do rebuilding of all drum units for all the older generations up to the BH-C-xx4e series with success and saving lots of money with it. I want to start now rebuilding also the drum units for the BH-C-xx8 series, but I have heard from a colleague that after market drums sometimes are noisy for these series. Is this a well known issue, guys?

        Hans

        Only Katun drums don't pipes.

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        • tsbservice
          Field tech

          Site Contributor
          5,000+ Posts
          • May 2007
          • 7730

          #5
          Re: BH-C-xx8 series, noisy after market drums

          I think drums(cylinders) are the same between 4e and 8 series, so if your drums for rebuilding 4e are good I don't see why can't use them in 8 series. Just give them a shot.
          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

          • CP-1015
            Trusted Tech

            Site Contributor
            250+ Posts
            • Nov 2020
            • 288

            #6
            Re: BH-C-xx8 series, noisy after market drums

            Originally posted by tsbservice
            I think drums(cylinders) are the same between 4e and 8 series, so if your drums for rebuilding 4e are good I don't see why can't use them in 8 series. Just give them a shot.
            I have had much trouble because some customer hears very good. I opened drum cylinder: the "contact" makes the noise. With cardboard or thread I stopped it. Otherwise they are the same but the charge roller brings vibrationen.

            Comment

            • tsbservice
              Field tech

              Site Contributor
              5,000+ Posts
              • May 2007
              • 7730

              #7
              Re: BH-C-xx8 series, noisy after market drums

              Originally posted by CP-1015
              I have had much trouble because some customer hears very good. I opened drum cylinder: the "contact" makes the noise. With cardboard or thread I stopped it. Otherwise they are the same but the charge roller brings vibrationen.
              Good, that make sense.
              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

              • copyman
                Owner / Technician

                Site Contributor
                2,500+ Posts
                • Sep 2005
                • 4334

                #8
                Re: BH-C-xx8 series, noisy after market drums

                Originally posted by Hansoon
                Thanks! Have no BH-C-xx8 series yet but want to be prepared. (YES! I'm still that backward.....)

                Are the drums you are using heavy? The good ones I use for the BH-C-xx4(e) series are more heavy in their weight than the usual after market stuff, which is perhaps the reason I never faced this noise issue, that is btw I believe to be caused by vibration of the drum core.

                Hans
                I also still have a lot of 4 series but had no choice but to start upgrading my customer base to the 8 series because 4 series stopped coming off lease and no more at were at wholesalers.

                The drums are different between the 4 & 8 series. 4 series: DRM311, 8 series: DRMU313

                Drums feel like same weight. I add some conductive grease to drum pin when rebuilding if factory grease is dry or missing.

                Again never had any noise but now that I mention it I'm sure I will be getting some calls for noise
                Last edited by copyman; 04-19-2023, 01:49 PM.

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                • otphas
                  Trusted Tech

                  Site Contributor
                  100+ Posts
                  • Aug 2019
                  • 103

                  #9
                  Re: BH-C-xx8 series, noisy after market drums

                  We also rebuild the drum units with compatible drums and we also have a problem with noisy drums. Some of them working ok in 4 series, but noisy on 8 ser. Seems have 2 modification lite and heavy. With lite version 8 ser is noisy maybe as someone said because of the pcr and vibration .

                  Comment

                  • copyman
                    Owner / Technician

                    Site Contributor
                    2,500+ Posts
                    • Sep 2005
                    • 4334

                    #10
                    Re: BH-C-xx8 series, noisy after market drums

                    Originally posted by tsbservice
                    I think drums(cylinders) are the same between 4e and 8 series, so if your drums for rebuilding 4e are good I don't see why can't use them in 8 series. Just give them a shot.
                    Although quite similar the drums are different between the 4 & 8 series. 4 series: DRM311, 8 series: DRMU313

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                    • Konicatech
                      Trusted Tech

                      100+ Posts
                      • Feb 2016
                      • 131

                      #11
                      Re: BH-C-xx8 series, noisy after market drums

                      Yes has issues with the "noise" when rebuilding 8 series drums, its almost like an electrical sound.

                      Thread on this below:

                      Bizhub C258 high pitch whine when copying/printing

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                      • ionutkok
                        Technician
                        • Nov 2012
                        • 24

                        #12
                        Re: BH-C-xx8 series, noisy after market drums

                        OPC Drum from Bizhub C-xx4 and C-xx8 are different . You need a cylinder for the 8 series or c250i ....

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                        • Don N.
                          Trusted Tech

                          250+ Posts
                          • Nov 2011
                          • 409

                          #13
                          Re: BH-C-xx8 series, noisy after market drums

                          We used to r/b C220 series & C224e series... Tried early on to r/b the 8 series and got the high pitch whine, like a capacitor on many. Some failed with a very strange black background or a cracked line image. 8 drum is def. not the same as 4e drum. I just went all OEM K drums and learned the trick of converting K to color.
                          3 major steps.
                          1 YMC chip
                          2 Black stopper- don't break it off. Unscrew it.
                          3 There are at least two kinds/styles of YMC front end caps inside the blue cover cap. Save the YMC OEM cores to use the inside cap over again on a K drum. The stepped piece that spaces the color drums from the DV unit are different than a K unit. Thus the need to bring the old YMC front inside caps over to your new K drum. The high pitch could very well be a dry front charge roller contact, which Copylite's R&D guy emphasized is critical to lube, and he really stressed the right lube. I think he's on top of getting the best r/b parts there, I just lost my shop tech and have no time to r/b or to deal with even a few recalls.

                          BTW, I only had a DV619K dev unit for C558/C658 and needed to put one in a in a slower C258 or C308. I saw no difference from the DV313K except the small slot tab by the screw hole that prevents the unit from screwing in flush.
                          I just broke it off so the dv unit went in the extra 2~3 mm and it's worked fine for about a month.
                          Copylite also has greatly improved their "SEAL368" polyurethane DV unit seal for 4e/8's. Now in a 10pk instead of single, but it's now mounted on a stiff mylar and includes the end seals for the same price!!! THANK YOU Copylite!
                          Can't get pics to upload on this site by attachments or insert image. Maybe too large?

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