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：US20190369521A1

公开(公告)日：2019-12-05

申请号：US16424536

申请日：2019-05-29

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tamotsu Shimizu ,  Yasushi Imanishi ,  Kenichi Tamaki

IPC: G03G15/06

Abstract: An image forming apparatus includes a storage unit and a charging amount acquisition unit. The charging amount acquisition unit forms a measurement toner image on the image carrier while changing the frequency of the alternating current voltage of the development bias, acquires 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 based on the change amount of the frequency and a result of detecting density of the measurement toner image in the density detecting unit, and acquires 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：US09535356B2

公开(公告)日：2017-01-03

申请号：US14960068

申请日：2015-12-04

Applicant: KYOCERA Document Solutions Inc.

Inventor： Shinji Otani ,  Norio Kubo ,  Masashi Fujishima ,  Koji Suenami ,  Yoshimi Shimizu ,  Kenichi Tamaki

IPC: G03G21/00 ,  G03G15/02 ,  G03G15/09 ,  G03G15/16 ,  G03G21/08

CPC classification number: G03G15/0275 ,  G03G15/09 ,  G03G15/169 ,  G03G21/08

Abstract: In the case where development is performed by a two-component developing method, a previous charge removal light-emitting portion applies charge removal light to a first charge removal target region of an effective outer circumferential surface of a photosensitive member on which effective outer circumferential surface an electrostatic latent image can be formed. The first charge removal target region includes a part of a magnetic brush contact region of the effective outer circumferential surface and a region of the effective outer circumferential surface between the magnetic brush contact region and a transfer position of a toner image.

Abstract translation: 在通过双组分显影方法进行显影的情况下，先前的电荷去除发光部分将电荷去除光施加到感光部件的有效外周表面的第一电荷去除目标区域， 可以形成静电潜像。 第一电荷去除目标区域包括有效外周表面的磁刷接触区域的一部分和磁刷接触区域和调色剂图像的转印位置之间的有效外圆周表面的区域。

公开(公告)号：US09176427B2

公开(公告)日：2015-11-03

申请号：US14330999

申请日：2014-07-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kenichi Tamaki ,  Hiroshi Yamazaki

IPC: G03G15/08

CPC classification number: G03G15/0889 ,  G03G15/0891 ,  G03G15/0893

Abstract: A developing device includes: a developer container having first and second transport passages, for containing developer; a developer carrier for carrying, on its surface, developer inside the second transport passage; a first stirring/transporting member having a rotary shaft and a transport blade formed on its circumferential surface, for stirring/transporting developer inside the first transport passage; a second stirring/transporting member for stirring/transporting developer inside the second transport passage in a direction opposite to the first stirring/transporting member; a first developer passing portion for delivering developer from the first to the second transport passage; and a second developer passing portion for delivering developer from the second to the first transport passage. In a part of the first stirring/transporting member facing the first developer passing portion, a paddle portion is formed which is devoid of the rotary shaft and which has a plurality of first ribs parallel to the rotary shaft.

Abstract translation: 显影装置包括：具有用于容纳显影剂的第一和第二输送通道的显影剂容器; 用于在其表面上承载第二输送通道内的显影剂的显影剂载体; 第一搅拌/输送构件，其具有旋转轴和形成在其圆周表面上的输送叶片，用于搅拌/输送第一输送通道内的显影剂; 第二搅拌/输送构件，用于在与第一搅拌/输送构件相反的方向上搅拌/输送第二输送通道内的显影剂; 用于将显影剂从第一输送通道输送到第二输送通道的第一显影剂通过部分; 以及用于将显影剂从第二输送通道输送到第二输送通道的第二显影剂通过部分。 在面向第一显影剂通过部分的第一搅拌/输送构件的一部分中，形成没有旋转轴并且具有平行于旋转轴的多个第一肋的桨部。

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。