公开(公告)号：US12007712B2

公开(公告)日：2024-06-11

申请号：US18332143

申请日：2023-06-09

Applicant: KYOCERA Document Solutions Inc.

Inventor： Junichi Nakagawa ,  Tamotsu Shimizu ,  Hiroshi Yamazaki ,  Kenichi Tamaki ,  Takuji Watanabe

IPC: G03G21/00 ,  G03G7/00 ,  G03G15/08 ,  G03G21/20

CPC classification number: G03G21/0052 ,  G03G7/0013 ,  G03G15/0808 ,  G03G15/081 ,  G03G15/0889 ,  G03G21/206 ,  G03G2215/085 ,  G03G2221/0021

Abstract: Provided is an image forming apparatus in which, while image formation is prevented from being performed, scattered toner that has dropped from a filter and adhered to an outer peripheral surface of a developer carrying member is recovered by a cleaning unit through intermediation of an image bearing member. An absolute value of a perpendicular-magnetic-force gradient of a fixed magnet of the developer carrying member is 4.0 mT/° or less at a position where the fixed magnet faces a central portion of the filter in a rotation direction of a developing sleeve.

公开(公告)号：US20130315632A1

公开(公告)日：2013-11-28

申请号：US13899870

申请日：2013-05-22

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yoshihiro Yamagishi ,  Hiroshi Yamazaki ,  Masaki Hayashi ,  Eiji Nimura ,  Koji Kuramashi

IPC: G03G15/08

CPC classification number: G03G15/0891 ,  G03G15/0893

Abstract: A developing device includes a housing, a developing roller, a developer supply path, a developer conveyance path, a supply-side conveying member, an agitating side conveying member and first projection members. The developing roller is rotatably supported in the housing. The supply-side conveying member includes a supply-side spiral member formed by connecting spiral pieces, in the first direction and having a hollow interior formed by the connected spiral pieces and a first rib member extending in the first direction, is arranged in the developer supply path and conveys the developer in the first direction by being driven and rotated. The first projecting members extend in the first direction along an outer wall portion of the first rib member from a first area where the supply-side spiral member and the first rib member intersect and project radially outward in the rotation of the supply-side conveying member.

Abstract translation: 显影装置包括壳体，显影辊，显影剂供给路径，显影剂输送路径，供给侧输送构件，搅拌侧输送构件和第一突起构件。 显影辊可旋转地支撑在壳体中。 供给侧输送部件包括供给侧螺旋部件，该供给侧螺旋部件沿着第一方向连接螺旋状部件，并且具有由连接的螺旋部件形成的中空内部和沿第一方向延伸的第一肋状部件。 供给路径，并通过驱动旋转将第一方向的显影剂输送。 所述第一突出构件沿着所述第一肋构件的外壁部从所述供给侧螺旋构件和所述第一肋构件的第一区域沿所述第一方向延伸，并且在所述供给侧输送构件的旋转中径向向外突出 。

公开(公告)号：US09141035B2

公开(公告)日：2015-09-22

申请号：US14453498

申请日：2014-08-06

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hiroshi Yamazaki

IPC: G03G15/09 ,  G03G15/08

CPC classification number: G03G15/0942 ,  G03G15/0812 ,  G03G15/0817

Abstract: A developing device includes a developing roller, a regulating blade, and seal members. The regulating blade extends in a rotation axis direction of the developing sleeve, is disposed opposite to a circumferential surface of the developing sleeve, and regulates a quantity of the toner present on the circumferential surface of the developing sleeve. The seal members are disposed opposite to the circumferential surface of the developing sleeve without being in contact with both ends of the developing sleeve in the rotation axis direction, and inhibit the toner on the circumferential surface from moving to the rotation axis direction ends by magnetic brushes formed between the magnet roller and the seal members. An inner surface part of each seal member which is opposite to the circumferential surface of the developing sleeve has root parts which have crest parts formed in a serrated shape.

Abstract translation: 显影装置包括显影辊，调节片和密封件。 调节刀片沿着显影套筒的旋转轴线方向延伸，与显影套筒的圆周表面相对设置，并且调节存在于显影套筒的圆周表面上的调色剂的量。 密封构件与显影套筒的圆周表面相对设置，而不与显影套筒的旋转轴线方向的两端接触，并且阻止圆周表面上的调色剂通过磁刷移动到旋转轴线方向 形成在磁辊和密封构件之间。 每个密封构件的与显影套筒的圆周表面相对的内表面部分具有形成为锯齿形状的顶部部分的根部。

公开(公告)号：US20130315631A1

公开(公告)日：2013-11-28

申请号：US13899791

申请日：2013-05-22

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yoshihiro Yamagishi ,  Hiroshi Yamazaki ,  Masaki Hayashi ,  Eiji Nimura ,  Koji Kuramashi

IPC: G03G15/08

CPC classification number: G03G15/0891 ,  G03G15/0893

Abstract: A developing device includes a developing roller, a developer supply path, a developer conveyance path, a supply-side conveying member and an agitating-side conveying member. The developing roller is rotatably supported in the housing. The developer supply path is arranged along the developing roller. The developer conveyance path is arranged along the developer supply path. The supply-side conveying member is a conveying member arranged in the developer supply path and includes a first receiving portion arranged to face the communication path at an upstream side in the first direction and configured to receive the developer from the developer conveyance path, and has a hollow spiral shape at a side downstream of the first receiving portion. The agitating-side conveying member is a conveying member arranged in the developer conveyance path and includes a first transferring portion arranged to face the first receiving portion at a downstream side in the second direction.

Abstract translation: 显影装置包括显影辊，显影剂供给路径，显影剂输送路径，供给侧输送部件和搅拌侧输送部件。 显影辊可旋转地支撑在壳体中。 显影剂供应路径沿显影辊布置。 显影剂输送路径沿着显影剂供给路径布置。 供给侧传送部件是布置在显影剂供应路径中的传送部件，包括第一接收部，其布置成在第一方向的上游侧面对连通路径并且构造成从显影剂传送路径接收显影剂，并且具有 在第一接收部分的下游侧的中空螺旋形状。 搅拌侧输送构件是布置在显影剂输送路径中的输送构件，并且包括在第二方向的下游侧面对第一容纳部的第一转印部。

公开(公告)号：US12092993B2

公开(公告)日：2024-09-17

申请号：US18332440

申请日：2023-06-09

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kenichi Tamaki ,  Hiroshi Yamazaki ,  Junichi Nakagawa ,  Takuji Watanabe ,  Tamotsu Shimizu

IPC: G03G21/20 ,  G03G15/08 ,  G03G15/09

CPC classification number: G03G21/206 ,  G03G15/0848 ,  G03G15/0898 ,  G03G15/0921

Abstract: Provided is an image forming apparatus in which, while image formation is prevented from being performed, scattered toner that has dropped from a filter and adhered to an outer peripheral surface of a developer carrying member is recovered. A fixed magnet of the developer carrying member has a first pole that is arranged to face the filter, and a second pole and a third pole on a downstream side relative to the first pole. The first pole and the second pole have polarities opposite to each other, and the second pole and the third pole have a same polarity. A length of a gap between the developing container and an area where the developing sleeve faces the second pole among areas of the developing sleeve is smaller than a length between the developing sleeve and the filter.

公开(公告)号：US11977350B2

公开(公告)日：2024-05-07

申请号：US18331671

申请日：2023-06-08

Applicant: KYOCERA Document Solutions Inc.

Inventor： Junichi Nakagawa ,  Tamotsu Shimizu ,  Hiroshi Yamazaki ,  Kenichi Tamaki ,  Takuji Watanabe

IPC: G03G21/20 ,  G03G15/00 ,  G03G15/02 ,  G03G15/06 ,  G03G15/09 ,  G03G21/00 ,  G03G21/10 ,  G03G21/18

CPC classification number: G03G21/206 ,  G03G15/0266 ,  G03G15/065 ,  G03G15/09 ,  G03G15/5008 ,  G03G21/0047 ,  G03G21/0052 ,  G03G21/10 ,  G03G21/105 ,  G03G21/1814 ,  G03G2215/00025 ,  G03G2221/1645

Abstract: An image forming apparatus includes an image carrier, a cleaning unit, a development device, and a control unit. The development device includes a toner collection mechanism having a developer carrier and a filter. The control unit is capable of executing a scattered toner recovery mode at non-image forming time, in which the filter is vibrated, a potential difference is generated in the direction for the toner to move from the developer carrier to the image carrier, the developer carrier is rotated in a reverse direction to that at image forming time, and the image carrier is rotated in the same direction as that at the image forming time, so that scattered toner, which has dropped from the filter and adhered to the developer carrier, is recovered by the cleaning unit via the image carrier.

公开(公告)号：US09274456B2

公开(公告)日：2016-03-01

申请号：US13899791

申请日：2013-05-22

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yoshihiro Yamagishi ,  Hiroshi Yamazaki ,  Masaki Hayashi ,  Eiji Nimura ,  Koji Kuramashi

IPC: G03G15/08

CPC classification number: G03G15/0891 ,  G03G15/0893

Abstract: A developing device includes a developing roller, a developer supply path, a developer conveyance path, a supply-side conveying member and an agitating-side conveying member. The developing roller is rotatably supported in the housing. The developer supply path is arranged along the developing roller. The developer conveyance path is arranged along the developer supply path. The supply-side conveying member is a conveying member arranged in the developer supply path and includes a first receiving portion arranged to face the communication path at an upstream side in the first direction and configured to receive the developer from the developer conveyance path, and has a hollow spiral shape at a side downstream of the first receiving portion. The agitating-side conveying member is a conveying member arranged in the developer conveyance path and includes a first transferring portion arranged to face the first receiving portion at a downstream side in the second direction.

Abstract translation: 显影装置包括显影辊，显影剂供给路径，显影剂输送路径，供给侧输送部件和搅拌侧输送部件。 显影辊可旋转地支撑在壳体中。 显影剂供应路径沿显影辊布置。 显影剂输送路径沿着显影剂供给路径布置。 供给侧传送部件是布置在显影剂供应路径中的传送部件，包括第一接收部，其布置成在第一方向的上游侧面对连通路径并且构造成从显影剂传送路径接收显影剂，并且具有 在第一接收部分的下游侧的中空螺旋形状。 搅拌侧输送构件是布置在显影剂输送路径中的输送构件，并且包括在第二方向的下游侧面对第一容纳部的第一转印部。

公开(公告)号：US09176429B2

公开(公告)日：2015-11-03

申请号：US13899870

申请日：2013-05-22

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yoshihiro Yamagishi ,  Hiroshi Yamazaki ,  Masaki Hayashi ,  Eiji Nimura ,  Koji Kuramashi

IPC: G03G15/08

CPC classification number: G03G15/0891 ,  G03G15/0893

Abstract: A developing device includes a housing, a developing roller, a developer supply path, a developer conveyance path, a supply-side conveying member, an agitating side conveying member and first projection members. The developing roller is rotatably supported in the housing. The supply-side conveying member includes a supply-side spiral member formed by connecting spiral pieces, in the first direction and having a hollow interior formed by the connected spiral pieces and a first rib member extending in the first direction, is arranged in the developer supply path and conveys the developer in the first direction by being driven and rotated. The first projecting members extend in the first direction along an outer wall portion of the first rib member from a first area where the supply-side spiral member and the first rib member intersect and project radially outward in the rotation of the supply-side conveying member.

Abstract translation: 显影装置包括壳体，显影辊，显影剂供给路径，显影剂输送路径，供给侧输送构件，搅拌侧输送构件和第一突起构件。 显影辊可旋转地支撑在壳体中。 供给侧输送部件包括供给侧螺旋部件，该供给侧螺旋部件沿着第一方向连接螺旋部件，并且具有由连接的螺旋部件形成的中空内部和沿第一方向延伸的第一肋状部件。 供给路径，并通过驱动旋转将第一方向的显影剂输送。 所述第一突出构件沿着所述第一肋构件的外壁部从所述供给侧螺旋构件和所述第一肋构件的第一区域沿所述第一方向延伸，并且在所述供给侧输送构件的旋转中径向向外突出 。

公开(公告)号：US09158233B2

公开(公告)日：2015-10-13

申请号：US13897200

申请日：2013-05-17

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Hiroshi Yamazaki ,  Eiji Nimura ,  Kuniaki Nakano ,  Koji Kuramashi ,  Yoshihiro Yamagishi

IPC: G03G15/08

CPC classification number: G03G15/0839 ,  G03G15/0877 ,  G03G15/0893

Abstract: A conveyance device includes a housing, a formation member, and a detection section. The housing has a first conveyance path, a second conveyance path, and a first communication path. The first and second conveyance paths each are a conveyance path for conveying a developer. The first communication path allows a first end portion of the first conveyance path and a first end portion of the second conveyance path to be in communication with each other via a communication surface. The communication surface has a first region and a second region. The formation member forms the second region of the communication surface so that a height of the second region from a bottom portion of the first communication path is lower than a height of the first region from the bottom portion of the first communication path. The detection section detects the amount of the developer.

Abstract translation: 输送装置包括壳体，形成构件和检测部。 壳体具有第一输送路径，第二输送路径和第一连通路径。 第一和第二输送路径各自是用于输送显影剂的输送路径。 第一连通路径允许第一输送路径的第一端部和第二输送路径的第一端部部分经由连通表面彼此连通。 通信表面具有第一区域和第二区域。 形成构件形成连通表面的第二区域，使得第二区域的距离第一连通路径的底部的高度低于从第一连通路径的底部开始的第一区域的高度。 检测部检测显影剂的量。

公开(公告)号：US09008553B2

公开(公告)日：2015-04-14

申请号：US13899696

申请日：2013-05-22

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kuniaki Nakano ,  Eiji Nimura ,  Koji Kuramashi ,  Hiroshi Yamazaki ,  Yoshihiro Yamagishi

IPC: G03G15/08

CPC classification number: G03G15/0891 ,  G03G15/0877 ,  G03G15/0889 ,  G03G15/0893 ,  G03G2215/0802

Abstract: A developer conveying device includes a housing, a developer conveyance path and a conveying member. The developer conveyance path extends between the pair of wall portions of the housing. The conveying member conveys developer from one wall portion toward the other. The conveying member includes a spiral member, shaft portions, a rib member, a supporting member and a projecting portion. The spiral member is formed by connecting spiral pieces in a conveying direction of the developer and includes a hollow interior formed by the connected spiral pieces. The rib member extends in the conveying direction and bridges adjacent ones of the spiral pieces of the spiral member. The supporting member connects an end part of the rib member in the conveying direction and the shaft portion. The projecting portion projects from the end part of the rib member more toward the wall portion than the supporting member.

Abstract translation: 显影剂输送装置包括壳体，显影剂输送路径和输送构件。 显影剂传送路径在壳体的一对壁部之间延伸。 输送构件将显影剂从一个壁部分输送到另一个壁部分。 输送构件包括螺旋构件，轴部，肋构件，支撑构件和突出部。 螺旋构件通过在显影剂的输送方向上连接螺旋片而形成，并且包括由连接的螺旋片形成的中空内部。 肋构件在输送方向上延伸并且桥接螺旋构件的相邻的螺旋件。 支撑构件将肋构件的输送方向的端部和轴部连接。 突出部从肋构件的端部向支撑构件的壁部更多地突出。