Bizhub color 8 series K drum units

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  • tsbservice
    Field tech

    Site Contributor
    5,000+ Posts
    • May 2007
    • 7635
    #1

    Bizhub color 8 series K drum units

    Good day ladies and gents.
    I'm curious if anyone knows differences between black drum units DR313K and DR315K which fits bizhubs C2-658 series.
    Seems DR315K cannot be purchased, but it's in latest Service manual.
    For example, C258 DR315K is rated at 170k, almost twice of standard life of DR313K 90k.

    TIA
    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.
    Tags: dr313k, dr315k, drum, series, units
    • blazebusiness
      SanDiegoCopierRepair.com

      Site Contributor
      1,000+ Posts
      • Apr 2010
      • 1246
      #2
      Re: Bizhub color 8 series K drum units

      Originally posted by tsbservice
      Good day ladies and gents.
      I'm curious if anyone knows differences between black drum units DR313K and DR315K which fits bizhubs C2-658 series.
      Seems DR315K cannot be purchased, but it's in latest Service manual.
      For example, C258 DR315K is rated at 170k, almost twice of standard life of DR313K 90k.

      TIA
      DR315K is probably the designation for black drum units sold in certain foreign/non-US countries. And the DR313K is what we use here. As far as those yields.....untrustworthy ---seems like they are the same drum but the yields vary by the Konica model they are used in.
      (Konica drum yields always vary.....use em until you get CQ issues. That's why we set the machine to continue operation in service mode)

      From the C658/558/458 brochure: Imaging unit lifetime Black: 155,000 pages

      From the C258 brochure: Imaging unit lifetime Black 90,000 pages

      (same part)

      But, if you download the C658 "startup parts guide"
      The drum is rated for
      Drum unit, K (DR-313K)
      C458: 135,000
      C558: 140,000
      C658: 150,000

      Which the notes call "Field standard value"
      Last edited by blazebusiness; 04-16-2019, 05:47 AM.
      sigpicAnything can be made to work if you fiddle with it long enough- San Diego Copier Repair.com

        Comment

        • darry1322
          Senior Tech

          Site Contributor
          500+ Posts
          • Oct 2010
          • 817
          #3
          Re: Bizhub color 8 series K drum units

          Originally posted by blazebusiness
          DR315K is probably the designation for black drum units sold in certain foreign/non-US countries. And the DR313K is what we use here. As far as those yields.....untrustworthy ---seems like they are the same drum but the yields vary by the Konica model they are used in.
          (Konica drum yields always vary.....use em until you get CQ issues. That's why we set the machine to continue operation in service mode)

          From the C658/558/458 brochure: Imaging unit lifetime Black: 155,000 pages

          From the C258 brochure: Imaging unit lifetime Black 90,000 pages

          (same part)

          But, if you download the C658 "startup parts guide"
          The drum is rated for
          Drum unit, K (DR-313K)
          C458: 135,000
          C558: 140,000
          C658: 150,000

          Which the notes call "Field standard value"
          The speed difference between the slower and faster machines is often just a delay between printed pages. As a result the slower machine spends more time just rotating the drum between feeds. While the total rotation life of the drum would be the same for slower and faster machines, the actual print life (page feeds) would be lower for the slow machines since they feed at a slower rate.

            Comment

            • tsbservice
              Field tech

              Site Contributor
              5,000+ Posts
              • May 2007
              • 7635
              #4
              Re: Bizhub color 8 series K drum units

              Originally posted by blazebusiness
              DR315K is probably the designation for black drum units sold in certain foreign/non-US countries. And the DR313K is what we use here. As far as those yields.....untrustworthy ---seems like they are the same drum but the yields vary by the Konica model they are used in.
              (Konica drum yields always vary.....use em until you get CQ issues. That's why we set the machine to continue operation in service mode)

              From the C658/558/458 brochure: Imaging unit lifetime Black: 155,000 pages

              From the C258 brochure: Imaging unit lifetime Black 90,000 pages

              (same part)

              But, if you download the C658 "startup parts guide"
              The drum is rated for
              Drum unit, K (DR-313K)
              C458: 135,000
              C558: 140,000
              C658: 150,000

              Which the notes call "Field standard value"
              I tend to read Service manual mainly about parts life.
              There is no destination explanation I know for DR315K, nor DR313K.
              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
                  #5
                  Re: Bizhub color 8 series K drum units

                  Originally posted by darry1322
                  The speed difference between the slower and faster machines is often just a delay between printed pages. As a result the slower machine spends more time just rotating the drum between feeds. While the total rotation life of the drum would be the same for slower and faster machines, the actual print life (page feeds) would be lower for the slow machines since they feed at a slower rate.
                  Yeah, different system speed is what they call it.
                  But for the same system speed machine, i.e. C258 drums life is 90k vs 170k prints and same almost double ratio for the drum counts.
                  There should be different price, parts or something else.
                  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

                    • suomi
                      Trusted Tech

                      100+ Posts
                      • Oct 2008
                      • 152
                      #6
                      Re: Bizhub color 8 series K drum units

                      For C658 / C368 series and 558 / 368 series, a high-durability Bk drum unit (DR-315K) will newly be available only for a spare part. Along with that, corresponding firmware (G00-V1) for the high-durability Bk drum unit will be released and applied to the production

                        Comment

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