公开(公告)号：US09366995B2

公开(公告)日：2016-06-14

申请号：US14739084

申请日：2015-06-15

Applicant: KYOCERA Document Solutions Inc.

Inventor： Masaru Hatano ,  Akifumi Yamaguchi ,  Yu Sasaki ,  Ryo Taniguchi ,  Eiji Gyotoku ,  Koji Kuramashi

IPC: G03G15/08 ,  G03G15/09

CPC classification number: G03G15/0893 ,  G03G15/0818 ,  G03G15/0921 ,  G03G2215/0863

Abstract: A developing device includes a housing, a developer carrier, a conveying member and a surface layer. The conveying member conveys the developer in the first conveying direction and supplies the developer to the developer carrier. The surface layer is arranged on the circumferential surface of the developer carrier and formed on a surface of a predetermined cylindrical base member. The surface layer is formed by an immersion method of immersing the base member in an immersion tank so that an axial direction of the base member extends along a vertical direction. A lower end side of the base member at the time of the immersion is arranged in a downstream side of the housing in the first conveying direction and an upper end side of the base member at the time of the immersion is arranged in an upstream side of the housing in the first conveying direction.

Abstract translation: 显影装置包括壳体，显影剂载体，输送构件和表面层。 输送构件在第一输送方向上输送显影剂，并将显影剂供给显影剂载体。 表层设置在显影剂载体的圆周表面上并形成在预定的圆柱形基底的表面上。 表面层通过将基底部件浸入浸渍槽中的浸渍方法形成，使得基底部件的轴向沿着垂直方向延伸。 浸渍时的基材的下端侧在第一输送方向上配置在壳体的下游侧，浸渍时的基材的上端侧配置在 壳体处于第一输送方向。

公开(公告)号：US09304479B1

公开(公告)日：2016-04-05

申请号：US14879782

申请日：2015-10-09

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tamotsu Shimizu ,  Ryo Taniguchi ,  Akifumi Yamaguchi

IPC: G03G21/00 ,  G03G15/08

CPC classification number: G03G21/0058 ,  G03G15/0806 ,  G03G15/0808 ,  G03G15/0815 ,  G03G15/751 ,  G03G21/0064 ,  G03G2215/00957

Abstract: In an image forming apparatus, a coating layer of each of a photoconductor drum and a collecting roller has been formed by a dipping method in which a base body of each of the photoconductor drum and the collecting roller is dipped in a liquid in a state where the base body is in a vertical attitude such that a first end of the base body faces down and a second end of the base body faces up. The collecting roller is supported in a state where the first end of the collecting roller base body and the second end of the drum base body face a same direction.

Abstract translation: 在图像形成装置中，通过浸渍方法形成感光鼓和收集辊中的每一个的涂层，其中每个感光鼓和收集辊的基体浸渍在液体中， 基体处于垂直姿态，使得基体的第一端面向下并且基体的第二端面朝上。 收集辊在收集辊基体的第一端和鼓基体的第二端面向相同方向的状态下被支撑。

公开(公告)号：US20140205324A1

公开(公告)日：2014-07-24

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: G03G15/08

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。 多个叶片构件沿着旋转轴的轴向连续地布置，以沿着轴向彼此相邻地连接螺旋叶片。

公开(公告)号：US10775727B2

公开(公告)日：2020-09-15

申请号：US16424816

申请日：2019-05-29

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akifumi Yamaguchi ,  Koji Suenami ,  Yasushi Imanishi ,  Tamotsu Shimizu

IPC: G03G15/00

Abstract: An image forming apparatus includes a storage unit and a charging amount acquisition unit. The charging amount acquisition unit performs a charging amount acquisition operation for forming a measurement toner image on the image carrier while changing the frequency of the alternating current voltage of the development bias with a potential difference in a direct current voltage between the developing roller and the image carrier being kept constant, acquiring a tilt of a measurement straight line representing a relationship between the change amount of the frequency and a density change amount of the measurement toner image, and acquiring the charging amount of the toner based on the acquired tilt of the measurement straight line and the reference information in the storage unit.

公开(公告)号：US20200073308A1

公开(公告)日：2020-03-05

申请号：US16554448

申请日：2019-08-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tamotsu Shimizu ,  Akifumi Yamaguchi ,  Yasuhiro Tauchi ,  Kenichi Tamaki ,  Koji Suenami

IPC: G03G15/00

Abstract: In the first charge amount acquisition operation, based on density of a plurality of toner images for measurement or based on a direct component of a developing current at the time of forming the plurality of toner images in addition to the density of the plurality of toner images for measurement, the charge amount acquisition section acquires a first toner charge amount that is a charge amount of toner included in the toner image for measurement. In the second charge amount acquisition operation, based on the toner density detected at the time of image formation and a relationship between the first toner charge amount and the toner density detected in the first charge amount acquisition operation, the charge amount acquisition section acquires a second toner charge amount that is a charge amount of the toner in the development device.

公开(公告)号：US10481522B2

公开(公告)日：2019-11-19

申请号：US16240896

申请日：2019-01-07

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tamotsu Shimizu ,  Yasuhiro Tauchi ,  Akifumi Yamaguchi

IPC: G03G15/08 ,  G03G15/09

Abstract: A developing device includes a developing roller and a layer thickness regulating member. The developing roller includes a fixed magnet and a sleeve. The layer thickness regulating member includes a regulating body portion and an upstream regulating portion, and the upstream regulating portion includes an upstream magnetic member and a nonmagnetic member. Developer is hardly strongly jammed in an area between a first magnetic field concentration point of the regulating body portion and a second magnetic field concentration point of the upstream regulating portion. Thus, even if the sleeve of the developing roller is rotated at a higher speed than before, the developer is stably regulated by the layer thickness regulating member.

公开(公告)号：US20160103413A1

公开(公告)日：2016-04-14

申请号：US14879782

申请日：2015-10-09

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tamotsu Shimizu ,  Ryo Taniguchi ,  Akifumi Yamaguchi

IPC: G03G15/095

CPC classification number: G03G21/0058 ,  G03G15/0806 ,  G03G15/0808 ,  G03G15/0815 ,  G03G15/751 ,  G03G21/0064 ,  G03G2215/00957

Abstract: In an image forming apparatus, a coating layer of each of a photoconductor drum and a collecting roller has been formed by a dipping method in which a base body of each of the photoconductor drum and the collecting roller is dipped in a liquid in a state where the base body is in a vertical attitude such that a first end of the base body faces down and a second end of the base body faces up. The collecting roller is supported in a state where the first end of the collecting roller base body and the second end of the drum base body face a same direction.

Abstract translation: 在图像形成装置中，通过浸渍方法形成感光鼓和收集辊中的每一个的涂层，其中每个感光鼓和收集辊的基体浸渍在液体中， 基体处于垂直姿态，使得基体的第一端面向下并且基体的第二端面朝上。 收集辊在收集辊基体的第一端和鼓基体的第二端面向相同方向的状态下被支撑。

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：US10691052B2

公开(公告)日：2020-06-23

申请号：US16554448

申请日：2019-08-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tamotsu Shimizu ,  Akifumi Yamaguchi ,  Yasuhiro Tauchi ,  Kenichi Tamaki ,  Koji Suenami

IPC: G03G15/00

Abstract: In the first charge amount acquisition operation, based on density of a plurality of toner images for measurement or based on a direct component of a developing current at the time of forming the plurality of toner images in addition to the density of the plurality of toner images for measurement, the charge amount acquisition section acquires a first toner charge amount that is a charge amount of toner included in the toner image for measurement. In the second charge amount acquisition operation, based on the toner density detected at the time of image formation and a relationship between the first toner charge amount and the toner density detected in the first charge amount acquisition operation, the charge amount acquisition section acquires a second toner charge amount that is a charge amount of the toner in the development device.

公开(公告)号：US20190369523A1

公开(公告)日：2019-12-05

申请号：US16424674

申请日：2019-05-29

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tamotsu Shimizu ,  Akifumi Yamaguchi ,  Yasuhiro Tauchi ,  Eiji Gyotoku ,  Yu Sasaki

IPC: G03G15/06

Abstract: An image forming apparatus includes a developer information acquisition unit. The developer information acquisition unit performs a developer deterioration information acquisition operation. In the developer deterioration information acquisition operation, the developer information acquisition unit acquires a tilt of a measurement straight line representing the relationship between the change amount of the frequency in a first measurement toner image forming operation and the density change amount of the measurement toner image based on the change amount of the frequency in the first measurement toner image forming operation and a result of detecting density of the measurement toner image in a density detecting unit, and acquires a toner charging amount based on the acquired tilt of the measurement straight line and the reference information in the storage unit so as to acquire information relating to deterioration of developer based on the acquired toner charging amount.