公开(公告)号：US11112730B2

公开(公告)日：2021-09-07

申请号：US17031152

申请日：2020-09-24

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ryo Yamada ,  Yuji Kamiyama ,  Yu Sasaki ,  Ikuo Makie

IPC: G03G15/08

Abstract: A developing device includes a developer container, a developer carrier, and a stirring/conveying member. The developer container stores developer containing toner. The developer carrier carries on its surface the toner in the developer container. The stirring/conveying member includes a rotary shaft rotatably supported on the developer container and a stirring blade formed around the outer circumferential face of the rotary shaft and stirs and conveys the developer in the developer container. The stirring/conveying member to be used can be selected from a plurality of types of stirring/conveying members with rotary shafts with different shaft diameters.

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.

公开(公告)号：US09910386B2

公开(公告)日：2018-03-06

申请号：US15625448

申请日：2017-06-16

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yu Sasaki

IPC: G03G15/08

CPC classification number: G03G15/0889 ,  G03G15/0865 ,  G03G15/087 ,  G03G15/0887 ,  G03G15/0893 ,  G03G15/0921 ,  G03G2215/0802 ,  G03G2215/0819 ,  G03G2215/0822 ,  G03G2215/0827 ,  G03G2215/0833

Abstract: A developing device includes a developing container and a second stirring member. The developing container includes a second feeding chamber and a developer discharge outlet disposed on the downstream side end of the second feeding chamber. The second stirring member includes a second feeding blade, a restricting part for conveying developer in the opposite direction to the second feeding blade, and a discharging blade for conveying the developer in the same direction as the second feeding blade so as to discharge the developer from the developer discharge outlet. The second rotation shaft includes a large shaft diameter part provided with the second feeding blade, a small shaft diameter part provided with the restricting part and the discharging blade, and a shaft diameter changing part positioned at a boundary between the large shaft diameter part and the small shaft diameter part.

公开(公告)号：US09304433B1

公开(公告)日：2016-04-05

申请号：US14879767

申请日：2015-10-09

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yu Sasaki ,  Masaru Hatano ,  Ryo Taniguchi

IPC: G03G15/08

CPC classification number: G03G15/0818 ,  G03G2215/0648

Abstract: In a developing device, a developing coating layer of each of a plurality of developing rollers has been formed by a dipping method in which a developing base body is dipped in a liquid in a state where the developing base body is in a vertical attitude such that a first end of the developing base body faces down and a second end of the developing base body faces up. The plurality of developing rollers are arranged from an upstream side to a downstream side in a rotation direction of an image-carrying member in such a manner that directions faced by the first end and the second end of each of the plurality of developing rollers are alternately reversed.

Abstract translation: 在显影装置中，通过浸渍方法形成多个显影辊中的每一个的显影涂层，其中在显影基体处于垂直姿势的状态下将显影基体浸入液体中，使得 显影基体的第一端面朝下，显影基体的第二端朝上。 多个显影辊从图像承载构件的旋转方向的上游侧到下游侧以这样的方式布置，即，使多个显影辊中的每一个的第一端和第二端相对的方向交替 逆转

公开(公告)号：US20150177642A1

公开(公告)日：2015-06-25

申请号：US14571152

申请日：2014-12-15

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yoshinobu Yoneima ,  Yuji Kamiyama ,  Akihiro Watanabe ,  Tamotsu Shimizu ,  Shizuka Okada ,  Sakae Saito ,  Yasuhiro Oishi ,  Chikara Ishihara ,  Masashi Fujishima ,  Yoshimi Shimizu ,  Yasuhiro Tauchi ,  Yu Sasaki

IPC: G03G15/09

CPC classification number: G03G15/0808 ,  G03G15/0818 ,  G03G15/09

Abstract: A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. A resin coat layer has been formed on an outer circumferential surface of the roller main body, the resin coat layer being made of a resin material having electric conductivity. A product of resistance component Rs [Ω] and electrostatic capacitance component Cs [F] in AC impedance Z of the roller main body is in a range from 2.79×10−7 to 6.77×10−5, the AC impedance Z being obtained when an AC voltage of a predetermined frequency f is applied.

Abstract translation: 显影辊包括辊状主体，其被设置为面对而不接触图像载体的外周表面。 在辊主体的外周面上形成树脂涂层，树脂涂层由具有导电性的树脂材料制成。 辊主体的交流阻抗Z中的电阻分量Rs [＆OHgr]和静电电容分量Cs [F]的乘积在2.79×10-7至6.77×10-5的范围内，获得AC阻抗Z 当施加预定频率f的AC电压时。

公开(公告)号：US09964896B2

公开(公告)日：2018-05-08

申请号：US15634506

申请日：2017-06-27

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yu Sasaki

IPC: G03G15/08

CPC classification number: G03G15/0889 ,  G03G15/0891 ,  G03G15/0893 ,  G03G2215/083 ,  G03G2215/0833

Abstract: A development device includes a development container and a second agitation member. The development container includes a second transport chamber and a developer discharge port which is provided at the end portion of the second transport chamber on a downstream side. The second agitation member includes a second transport blade, a damming member which dams a developer, a regulation portion which transports the developer in a direction opposite to the second transport blade and a discharge blade which discharges the developer from the developer discharge portion. A second rotation shaft includes a large shaft diameter portion on which the second transport blade is provided, a small shaft diameter portion on which the regulation portion and the discharge blade are provided and a shaft diameter change portion. The damming member is arranged between the shaft diameter change portion and the end portion of the second transport blade on the downstream side.

公开(公告)号：US09829830B2

公开(公告)日：2017-11-28

申请号：US15378848

申请日：2016-12-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yu Sasaki

IPC: G03G15/08

CPC classification number: G03G15/0893 ,  G03G2215/083 ,  G03G2215/0838

Abstract: A developing device has a developer container, first and second stirring members, and a developer carrying member. The developer container has a plurality of transport chambers including first and second transport chambers, a communication portion through which the first and second transport chambers mutually communicate in opposite end parts thereof in their longitudinal direction, a developer supply port, and a developer discharge port arranged in a downstream-side end part of the second transport chamber. The second stirring member has a second transport blade, a regulating portion formed on the downstream side of the second transport blade, a discharge blade formed on the downstream side of the regulating portion and discharging developer through the developer discharge port, and a disk formed at a position facing the downstream-side communication portion on the upstream side of the regulating portion and radially protruding over the entire circumference of a rotary shaft.

公开(公告)号：US20160103402A1

公开(公告)日：2016-04-14

申请号：US14879767

申请日：2015-10-09

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yu Sasaki ,  Masaru Hatano ,  Ryo Taniguchi

IPC: G03G15/09

CPC classification number: G03G15/0818 ,  G03G2215/0648

Abstract: In a developing device, a developing coating layer of each of a plurality of developing rollers has been formed by a dipping method in which a developing base body is dipped in a liquid in a state where the developing base body is in a vertical attitude such that a first end of the developing base body faces down and a second end of the developing base body faces up. The plurality of developing rollers are arranged from an upstream side to a downstream side in a rotation direction of an image-carrying member in such a manner that directions faced by the first end and the second end of each of the plurality of developing rollers are alternately reversed.

Abstract translation: 在显影装置中，通过浸渍方法形成多个显影辊中的每一个的显影涂层，其中在显影基体处于垂直姿势的状态下将显影基体浸入液体中，使得 显影基体的第一端面朝下，显影基体的第二端朝上。 多个显影辊从图像承载构件的旋转方向的上游侧到下游侧以这样的方式布置，即，使多个显影辊中的每一个的第一端和第二端相对的方向交替 逆转

公开(公告)号：US09285709B2

公开(公告)日：2016-03-15

申请号：US14812168

申请日：2015-07-29

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yu Sasaki ,  Yoshinobu Yoneima

IPC: G03G15/08

CPC classification number: G03G15/0849 ,  G03G15/0893

Abstract: A developing device includes: a container, a stirring member, a developing roller, a toner concentration detection section, a stirring plate, and an elastic member. The stirring plate is attached to the rotary shaft of the stirring member in a manner such as to be rotatable together with the rotary shaft, and has a tip part located in the radial direction at a predefined distance from the detection surface. The elastic member has elasticity, is attached to the stirring plate in a manner such as to surround a one-side surface, an another-side surface, and the tip part in a rotation direction of the stirring plate, has a sufficient length in the radial direction enough to abut the detection surface, and makes sliding-contact with the detection surface while rotating together with the stirring plate.

Abstract translation: 显影装置包括：容器，搅拌构件，显影辊，调色剂浓度检测部，搅拌板和弹性构件。 搅拌板以与旋转轴一起旋转的方式附接到搅拌构件的旋转轴，并且具有位于径向方向上与检测表面预定距离的尖端部分。 弹性构件具有弹性，以搅拌板的旋转方向围绕单侧表面，另一侧表面和末端部分的方式附着到搅拌板上， 径向足以邻接检测表面，并与搅拌板一起旋转时与检测表面滑动接触。

公开(公告)号：US20160041503A1

公开(公告)日：2016-02-11

申请号：US14812168

申请日：2015-07-29

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yu Sasaki ,  Yoshinobu Yoneima

IPC: G03G15/08

CPC classification number: G03G15/0849 ,  G03G15/0893

Abstract: A developing device includes: a container, a stirring member, a developing roller, a toner concentration detection section, a stirring plate, and a blade. The stirring plate is attached to the rotary shaft of the stirring member in a manner such as to be rotatable together with the rotary shaft, and has a tip part located in the radial direction at a predefined distance from the detection surface. The blade has elasticity, is attached to the stirring plate in a manner such as to surround a one-side surface, an another-side surface, and the tip part in a rotation direction of the stirring plate, has a sufficient length in the radial direction enough to abut the detection surface, and makes sliding-contact with the detection surface while rotating together with the stirring plate.

Abstract translation: 显影装置包括：容器，搅拌构件，显影辊，调色剂浓度检测部，搅拌板和叶片。 搅拌板以与旋转轴一起旋转的方式附接到搅拌构件的旋转轴，并且具有位于径向方向上与检测表面预定距离的尖端部分。 叶片具有弹性，以搅拌板的旋转方向围绕单侧表面，另一侧表面和顶端部分的方式附接到搅拌板，在径向上具有足够的长度 方向足以邻接检测表面，并在与搅拌板一起旋转的同时与检测表面滑动接触。