公开(公告)号：US20150234322A1

公开(公告)日：2015-08-20

申请号：US14624422

申请日：2015-02-17

Applicant: KYOCERA Document Solutions Inc.

Inventor： Minoru Wada ,  Masaru Hatano ,  Yoshinori Horiuchi ,  Akira Matayoshi ,  Ayaka Kondo ,  Motoki Moriguchi ,  Masahito Ishino

IPC: G03G15/09

CPC classification number: G03G15/0889 ,  G03G15/0893

Abstract: A developing device includes a storing portion, a stirring member, a developing roller, a shield plate, and a guide portion. The storing portion stores developer. The stirring member is rotatably provided in the storing portion and stirs the developer in the storing portion by being rotationally driven in a predetermined first rotation direction. The developing roller is rotatably provided above the stirring member, has a magnet that attracts the developer in the storing portion by a magnetic force, and is rotationally driven in a predetermined second rotation direction. The shield plate is made of a nonmagnetic material and provided at a facing position where the developing roller and the stirring member face each other. The guide portion is provided more on an upstream side in the first rotation direction than the facing position, and guides the developer from the storing portion to the developing roller side.

Abstract translation: 显影装置包括存储部分，搅拌部件，显影辊，屏蔽板和引导部分。 存储部存储显影剂。 搅拌构件可旋转地设置在存储部分中，并通过沿预定的第一旋转方向旋转驱动来搅动存储部分中的显影剂。 显影辊可旋转地设置在搅拌构件上方，具有通过磁力吸引存储部中的显影剂的磁体，并且以预定的第二旋转方向旋转驱动。 屏蔽板由非磁性材料制成，并且设置在显影辊和搅拌构件彼此面对的相对位置处。 引导部分在第一旋转方向的上游侧比面对位置更多地设置，并且将显影剂从存储部分引导到显影辊侧。

公开(公告)号：US09031472B2

公开(公告)日：2015-05-12

申请号：US14154963

申请日：2014-01-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takefumi Yotsutsuji ,  Akifumi Yamaguchi ,  Takahisa Nakaue ,  Tamotsu Shimizu ,  Minoru Wada ,  Shizuka Okada

IPC: G03G15/18 ,  G03G15/08

CPC classification number: G03G15/0893 ,  G03G15/0822

Abstract: A developing device includes a housing containing a developer, a developer carrier, a developer conveying path, a developer conveying member, and a plurality of paddle members. The developer conveying path includes a first conveying path and a second conveying path. The developer conveying member is disposed in the second conveying path and includes a rotating shaft and spiral blades formed around the rotating shaft. The developer conveying member is rotationally driven to convey the developer in the second direction and feeds the developer to the developer carrier. The plurality of paddle members project in a radial direction from the rotating shaft of the developer conveying member at one circumferential position on the rotating shaft. The plurality of paddle members is contiguously arranged in the axial direction of the rotating shaft to connect the spiral blades adjacent to each other in the axial direction.

Abstract translation: 显影装置包括容纳显影剂，显影剂载体，显影剂输送路径，显影剂输送构件和多个桨状构件的壳体。 显影剂输送路径包括第一输送路径和第二输送路径。 显影剂输送构件设置在第二输送路径中，并且包括旋转轴和围绕旋转轴形成的螺旋叶片。 旋转地驱动显影剂输送构件以沿第二方向输送显影剂，并将显影剂供给显影剂载体。 多个叶片构件在旋转轴的一个圆周位置处从显影剂传送构件的旋转轴在径向方向上突出。 多个叶片构件沿旋转轴的轴向连续地布置，以沿着轴向相互连接的螺旋叶片。

公开(公告)号：US08942600B2

公开(公告)日：2015-01-27

申请号：US14082037

申请日：2013-11-15

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takahisa Nakaue ,  Tamotsu Shimizu ,  Ikuo Makie ,  Kenichi Tamaki ,  Minoru Wada ,  Takefumi Yotsutsuji ,  Shizuka Okada

IPC: G03G15/08

CPC classification number: G03G15/0877 ,  G03G15/0893

Abstract: A developing apparatus according to one aspect of the present disclosure includes a developing roller, a development housing, a first agitating screw, a toner supply inlet, a downstream-side reduction wall, and an upstream-side reduction wall. The developing roller is driven to rotate in the development housing, and carries toner on the circumferential surface thereof. Toner is circulated and conveyed in a first conveying path and a second conveying path in the development housing. The first agitating screw is disposed in the first conveying path, and conveys toner in a first direction. The downstream-side reduction wall is disposed downstream of the toner supply inlet. Further, the upstream-side reduction wall is disposed upstream of the toner supply inlet. An accumulation portion for toner is formed downstream and upstream of the toner supply inlet due to the downstream-side reduction wall and the upstream-side reduction wall.

Abstract translation: 根据本公开的一个方面的显影装置包括显影辊，显影壳体，第一搅拌螺杆，调色剂供给入口，下游侧还原壁和上游侧还原壁。 显影辊被驱动以在显影壳体中旋转，并且在其圆周表面上承载调色剂。 调色剂在显影壳体中的第一输送路径和第二输送路径中循环和输送。 第一搅拌螺杆设置在第一输送路径中，并沿着第一方向输送调色剂。 下游侧还原壁设置在调色剂供应入口的下游。 此外，上游侧还原壁设置在调色剂供应入口的上游。 由于下游侧还原壁和上游侧还原壁，在调色剂供应入口的下游和上游形成调色剂的累积部分。

公开(公告)号：US20140140732A1

公开(公告)日：2014-05-22

申请号：US14082037

申请日：2013-11-15

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takahisa Nakaue ,  Tamotsu Shimizu ,  Ikuo Makie ,  Kenichi Tamaki ,  Minoru Wada ,  Takefumi Yotsutsuji ,  Shizuka Okada

IPC: G03G15/08

CPC classification number: G03G15/0877 ,  G03G15/0893

Abstract: A developing apparatus according to one aspect of the present disclosure includes a developing roller, a development housing, a first agitating screw, a toner supply inlet, a downstream-side reduction wall, and an upstream-side reduction wall. The developing roller is driven to rotate in the development housing, and carries toner on the circumferential surface thereof. Toner is circulated and conveyed in a first conveying path and a second conveying path in the development housing. The first agitating screw is disposed in the first conveying path, and conveys toner in a first direction. The downstream-side reduction wall is disposed downstream of the toner supply inlet. Further, the upstream-side reduction wall is disposed upstream of the toner supply inlet. An accumulation portion for toner is formed downstream and upstream of the toner supply inlet due to the downstream-side reduction wall and the upstream-side reduction wall.

Abstract translation: 根据本公开的一个方面的显影装置包括显影辊，显影壳体，第一搅拌螺杆，调色剂供给入口，下游侧还原壁和上游侧还原壁。 显影辊被驱动以在显影壳体中旋转，并且在其圆周表面上承载调色剂。 调色剂在显影壳体中的第一输送路径和第二输送路径中循环和输送。 第一搅拌螺杆设置在第一输送路径中，并沿着第一方向输送调色剂。 下游侧还原壁设置在调色剂供应入口的下游。 此外，上游侧还原壁设置在调色剂供应入口的上游。 由于下游侧还原壁和上游侧还原壁，在调色剂供应入口的下游和上游形成调色剂的累积部分。

公开(公告)号：US20220107581A1

公开(公告)日：2022-04-07

申请号：US17449068

申请日：2021-09-27

Applicant: KYOCERA Document Solutions Inc.

Inventor： Minoru Wada ,  Masahito Ishino ,  Takahisa Nakaue ,  Yukari Ota ,  Tomohiro Tamaki

IPC: G03G15/06 ,  G03G15/02

Abstract: An image forming apparatus includes an image-carrying member, a charging device, an exposure device, and a developing device. The charging device charges a surface of the image-carrying member. The exposure device writes an electrostatic latent image on the surface of the image-carrying member by exposing the charged surface of the image-carrying member. The developing device includes a developing roller and a bias output circuit. The bias output circuit applies a developing bias to the developing roller. A potential VH of a non-exposure portion charged on the surface of the image-carrying member, a potential VL of an exposure portion on the surface of the image-carrying member, and the developing bias VDD meet a relationship of VH−VDD≥2 (VDD−VL). In addition, a difference between the developing bias VDD and the potential VL of the exposure portion (VDD−VL) is 100 V or more.

公开(公告)号：US09785084B2

公开(公告)日：2017-10-10

申请号：US15277546

申请日：2016-09-27

Applicant: KYOCERA Document Solutions Inc.

Inventor： Minoru Wada ,  Masaru Hatano ,  Masaki Kadota ,  Masahito Ishino ,  Keisuke Isoda ,  Atsushi Ishizaki

IPC: G03G15/00 ,  G03G15/02 ,  G03G15/06 ,  G03G15/01

CPC classification number: G03G15/0266 ,  G03G15/0189 ,  G03G15/065 ,  G03G15/5058

Abstract: An image forming apparatus includes an apparatus main body, a photoreceptor drum, a charging apparatus, a developing device, a transfer apparatus, a charging bias applying unit, a developing bias applying unit, a bias adjusting unit, and a print density measurement unit. The bias adjusting unit controls the charging bias applying unit to form a plurality of electric potential areas of electric potentials with different magnitudes. The bias adjusting unit applies a predetermined developing bias corresponding to a target electric potential to the developing roller, so as to form a plurality of toner images by electric potential differences between the developing bias and the plurality of electric potential areas. The bias adjusting unit decides a value of a charging bias corresponding to the target electric potential from measurement results of print densities of the plurality of toner images measured by the print density measurement unit.

公开(公告)号：US09201347B2

公开(公告)日：2015-12-01

申请号：US14593595

申请日：2015-01-09

Applicant: KYOCERA Document Solutions Inc.

Inventor： Minoru Wada ,  Masaru Hatano ,  Yoshinori Horiuchi

IPC: G03G15/09 ,  G03G15/08

CPC classification number: G03G15/0891 ,  G03G15/0812

Abstract: A developing device has a developing container, a developer carrier, and a restricting member. The restricting member restricts the layer thickness of developer on the surface of the developer carrier. The restricting member includes a restricting base formed of resin with higher strength than the developing container and a metal foil arranged at a tip part of the restricting base. The metal foil has a downstream face portion fixed to a downstream-side face of the restricting base and a restricting face portion formed by bending the tip of the downstream face portion to an upstream side and arranged to face the developer carrier.

Abstract translation: 显影装置具有显影容器，显影剂载体和限制构件。 限制构件限制显影剂载体表面上的显影剂的层厚度。 限制构件包括由比显影容器高的树脂形成的限制底座和布置在限制底座的尖端部分的金属箔。 金属箔具有固定到限制底座的下游侧的下游面部分和通过将下游面部分的前端弯曲到上游侧而形成的限制面部，并且布置成面对显影剂载体。

公开(公告)号：US09063468B2

公开(公告)日：2015-06-23

申请号：US14180793

申请日：2014-02-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Minoru Wada ,  Takahisa Nakaue ,  Tamotsu Shimizu ,  Ikuo Makie ,  Kenichi Tamaki ,  Takefumi Yotsutsuji ,  Shizuka Okada

IPC: G03G15/08 ,  G03G15/09

CPC classification number: G03G15/0921 ,  G03G15/0865 ,  G03G2215/0838

Abstract: A developing device includes: a housing, a refill developer storage part, a developing roller, a developer conveyance path, a developer receiving port, a conveyance member, and a magnetic member. The developing roller is driven into rotation in the developing housing and carries a toner on a circumferential surface thereof. The toner is conveyed inside the first conveyance path and the second conveyance path of the developing housing in a circulating manner. A first stirring screw is disposed on the first conveyance path and conveys the toner in a first direction. Downstream of the toner refill port, a magnet is arranged. The magnetic member forms a magnetic brush from a top panel of the developing housing towards the first stirring screw. A refill toner flowed-in through the toner refill port is so conveyed as to fall below the magnetic brush whereby the refill toner is favorably stirred with a surrounding toner.

Abstract translation: 显影装置包括：外壳，再充填显影剂储存部分，显影辊，显影剂输送路径，显影剂接收口，输送部件和磁性部件。 显影辊在显影壳体中被驱动旋转并在其圆周表面上承载调色剂。 调色剂以循环的方式在显影箱的第一输送路径和第二输送路径内传送。 第一搅拌螺杆设置在第一输送路径上并沿着第一方向输送调色剂。 在调色剂补充口的下游配置有磁铁。 磁性构件从显影壳体的顶板朝向第一搅拌螺杆形成磁刷。 通过调色剂填充口流入的再填充调色剂被输送以便落在磁刷下方，由此再充填调色剂与周围的调色剂有利地搅拌。

公开(公告)号：US20140147175A1

公开(公告)日：2014-05-29

申请号：US14090268

申请日：2013-11-26

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ikuo Makie ,  Kenichi Tamaki ,  Minoru Wada ,  Shizuka Okada ,  Tamotsu Shimizu

IPC: G03G15/08

CPC classification number: G03G15/0879 ,  G03G2215/0827 ,  G03G2215/083 ,  G03G2215/0833

Abstract: A developer storage container includes a container main body, a tubular portion projecting from the container main body, and a rotary member extending from the container main body to the tubular portion. The rotary member includes a first section located in the container main body and a second section located in the tubular portion. A first conveying member for conveying developer in a first conveying direction is arranged on the second section of a rotary shaft, and a second conveying member for conveying the developer in a second conveying direction is arranged radially outwardly of the first conveying member around the first section. A first flexible member radially extending to a side outward of the second conveying member and a second flexible member radially extending to a side outward of the second conveying member and having a shorter length than the first flexible member are mounted on the rotary shaft.

Abstract translation: 显影剂储存容器包括容器主体，从容器主体突出的管状部分和从容器主体延伸到管状部分的旋转部件。 旋转构件包括位于容器主体中的第一部分和位于管状部分中的第二部分。 用于在第一输送方向上输送显影剂的第一输送构件设置在旋转轴的第二部分上，并且用于沿第二输送方向输送显影剂的第二输送构件围绕第一部分径向向外设置在第一输送构件的外侧 。 径向延伸到第二输送构件外侧的第一柔性构件和径向延伸到第二输送构件的外侧并具有比第一柔性构件更短的长度的第二柔性构件安装在旋转轴上。

公开(公告)号：US09235162B2

公开(公告)日：2016-01-12

申请号：US14090268

申请日：2013-11-26

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ikuo Makie ,  Kenichi Tamaki ,  Minoru Wada ,  Shizuka Okada ,  Tamotsu Shimizu

IPC: G03G15/08

CPC classification number: G03G15/0879 ,  G03G2215/0827 ,  G03G2215/083 ,  G03G2215/0833

Abstract: A developer storage container includes a container main body, a tubular portion projecting from the container main body, and a rotary member extending from the container main body to the tubular portion. The rotary member includes a first section located in the container main body and a second section located in the tubular portion. A first conveying member for conveying developer in a first conveying direction is arranged on the second section of a rotary shaft, and a second conveying member for conveying the developer in a second conveying direction is arranged radially outwardly of the first conveying member around the first section. A first flexible member radially extending to a side outward of the second conveying member and a second flexible member radially extending to a side outward of the second conveying member and having a shorter length than the first flexible member are mounted on the rotary shaft.

Abstract translation: 显影剂储存容器包括容器主体，从容器主体突出的管状部分和从容器主体延伸到管状部分的旋转部件。 旋转构件包括位于容器主体中的第一部分和位于管状部分中的第二部分。 用于在第一输送方向上输送显影剂的第一输送构件设置在旋转轴的第二部分上，并且用于沿第二输送方向输送显影剂的第二输送构件围绕第一部分径向向外设置在第一输送构件的外侧 。 径向延伸到第二输送构件外侧的第一柔性构件和径向延伸到第二输送构件的外侧并具有比第一柔性构件更短的长度的第二柔性构件安装在旋转轴上。