公开(公告)号：US08447216B2

公开(公告)日：2013-05-21

申请号：US13032160

申请日：2011-02-22

Applicant: Shota Oba ,  Shigeru Inaba ,  Takashi Ochi ,  Yoshitaka Nakajima ,  Shinichi Kuramoto

Inventor： Shota Oba ,  Shigeru Inaba ,  Takashi Ochi ,  Yoshitaka Nakajima ,  Shinichi Kuramoto

IPC: G03G15/08

CPC classification number: G03G15/0808 ,  G03G15/0812 ,  G03G15/09

Abstract: A development unit includes: a developing vessel in which a developing agent is received; a developing member as defined herein; a supply member which is supported in the developing vessel and disposed to be opposed to the developing member, the supply member rotating the developing agent in the developing vessel while holding the developing agent on a surface of the supply member to thereby supply the developing agent held on the surface to the developing member; and a thickness limiting member as defined herein, and the supply member is supported movably in a direction to expand or reduce a gap between the thickness limiting member and the supply member so that the gap between the thickness limiting member and the supply member can be adjusted.

Abstract translation: 开发单元包括：显影剂，其中接收显影剂; 本文定义的显影剂; 供给构件，其被支撑在显影容器中并且设置成与显影构件相对，供给构件在显影剂保持在供给构件的表面上的同时使显影剂旋转在显影容器中，从而供给持续的显影剂 在表面上至显影部件; 以及如本文所定义的厚度限制构件，并且供给构件被可移动地支撑在扩大或减小厚度限制构件和供给构件之间的间隙的方向上，使得可以调节厚度限制构件与供给构件之间的间隙 。

公开(公告)号：US20120251189A1

公开(公告)日：2012-10-04

申请号：US13273800

申请日：2011-10-14

Applicant: Shota OBA ,  Takashi OCHI ,  Shigeru INABA ,  Yoshitaka NAKAJIMA ,  Akihisa MARUYAMA ,  Toshihiro KANEMATSU

Inventor： Shota OBA ,  Takashi OCHI ,  Shigeru INABA ,  Yoshitaka NAKAJIMA ,  Akihisa MARUYAMA ,  Toshihiro KANEMATSU

IPC: G03G15/09

CPC classification number: G03G15/065 ,  G03G15/0818 ,  G03G2215/0132 ,  G03G2215/0822 ,  G03G2215/0838

Abstract: An image forming apparatus includes a rotating image carrier, a charging device, a latent image forming device, a developing device having a developer holder and developing a latent image as a visible image, a voltage application unit that generates a potential difference between the image carrier and the developer holder to form an electric field, by which toner is directed toward the latent image, in a developing region, and a transfer device that transfers the visible image of the image carrier to a medium, wherein the developer holder having a concavo-convex portion having a convex portion and a concave portion is provided in an outer surface thereof and formed such that the volume resistivity of a portion corresponding to the convex portion is set to be larger than the volume resistivity of a portion corresponding to the concave portion.

Abstract translation: 图像形成装置包括旋转图像载体，充电装置，潜像形成装置，具有显影剂载体的显影装置和显影潜像作为可视图像;电压施加单元，其产生图像载体之间的电位差 和显影剂载体，以在显影区域中形成调色剂指向潜像的电场;以及转印装置，其将图像载体的可见图像转印到介质上，其中，具有凹凸形状的显影剂载体， 具有凸部和凹部的凸部设置在其外表面中，并且形成为使得与凸部对应的部分的体积电阻率设定为大于与凹部对应的部分的体积电阻率。

公开(公告)号：US20120051796A1

公开(公告)日：2012-03-01

申请号：US13032160

申请日：2011-02-22

Applicant: Shota OBA ,  Shigeru INABA ,  Takashi OCHI ,  Yoshitaka NAKAJIMA ,  Shinichi KURAMOTO

Inventor： Shota OBA ,  Shigeru INABA ,  Takashi OCHI ,  Yoshitaka NAKAJIMA ,  Shinichi KURAMOTO

IPC: G03G15/09

CPC classification number: G03G15/0808 ,  G03G15/0812 ,  G03G15/09

Abstract: A development unit includes: a developing vessel in which a developing agent is received; a developing member as defined herein; a supply member which is supported in the developing vessel and disposed to be opposed to the developing member, the supply member rotating the developing agent in the developing vessel while holding the developing agent on a surface of the supply member to thereby supply the developing agent held on the surface to the developing member; and a thickness limiting member as defined herein, and the supply member is supported movably in a direction to expand or reduce a gap between the thickness limiting member and the supply member so that the gap between the thickness limiting member and the supply member can be adjusted.

Abstract translation: 开发单元包括：显影剂，其中接收显影剂; 本文定义的显影剂; 供给构件，其被支撑在显影容器中并且设置成与显影构件相对，供给构件在显影剂保持在供给构件的表面上的同时使显影剂旋转在显影容器中，从而供给持续的显影剂 在表面上至显影部件; 以及如本文所定义的厚度限制构件，并且供给构件被可移动地支撑在扩大或减小厚度限制构件和供给构件之间的间隙的方向上，使得可以调节厚度限制构件与供给构件之间的间隙 。

公开(公告)号：US20120039637A1

公开(公告)日：2012-02-16

申请号：US13041891

申请日：2011-03-07

Applicant: Takashi OCHI ,  Shota OBA ,  Shigeru INABA ,  Shinichi KURAMOTO ,  Yoshitaka NAKAJIMA

Inventor： Takashi OCHI ,  Shota OBA ,  Shigeru INABA ,  Shinichi KURAMOTO ,  Yoshitaka NAKAJIMA

IPC: G03G15/09

CPC classification number: G03G15/0921

Abstract: A developing device includes: a developing member including a magnetism-generating member having plural magnetic poles polarized in a circumferential-direction thereof, and a rotating member that is rotated about the magnetism-generating member; a developer-pumping pole provided in the magnetism-generating member, and that pumps up the developer, which is supplied from a developer accommodating portion, to the rotating member surface; a developer-peeling-off pole provided in the magnetism-generating member below a rotation axis of the rotating member in a vertical direction on an upstream side of the developer-pumping pole in a rotational-direction of the rotating member, that peels off the developer from the rotating member surface; and a magnetic body provided in at least a portion between a facing position facing the developer-peeling-off pole in a circumferential-direction of the rotating member and an intermediate position between the developer-peeling-off pole and the developer-pumping pole in the circumferential direction, facing the rotating member surface.

Abstract translation: 显影装置包括：显影构件，包括具有多个在其周向极化的磁极的磁发生构件和围绕该磁性发生构件旋转的旋转构件; 设置在所述磁力产生部件中的显影剂抽吸极，并且将从显影剂容纳部供应的显影剂泵送到所述旋转部件表面; 显影剂剥离极，其设置在所述旋转构件的旋转轴的下方的所述磁性发生构件的垂直方向的旋转构件的旋转方向的显影剂抽吸极的上游侧，剥离所述显影剂剥离极 显影剂从旋转构件表面; 以及设置在旋转构件的圆周方向上的面向显影剂剥离极的面对位置与显影剂剥离极与显影剂抽出极之间的中间位置的至少一部分的磁性体， 圆周方向，面向旋转构件表面。

公开(公告)号：US07702264B2

公开(公告)日：2010-04-20

申请号：US11783979

申请日：2007-04-13

Applicant: Makoto Hirota ,  Takashi Yamamuro ,  Shigeru Inaba ,  Shota Oba ,  Akihiko Noda ,  Yoshifumi Ozaki

Inventor： Makoto Hirota ,  Takashi Yamamuro ,  Shigeru Inaba ,  Shota Oba ,  Akihiko Noda ,  Yoshifumi Ozaki

IPC: G03G15/08

CPC classification number: G03G15/0266 ,  G03G15/0818

Abstract: An image forming apparatus includes an image carrier that carries a latent image; a charging device that charges the image carrier with a charging voltage having an AC component; and a roller that carries a developer to be supplied to the image carrier in a developing position, with a surface of the roller provided with axially-formed grooves, the frequency of the AC component of the charging voltage and the number of the grooves provided on the roller being set so that non-uniformity in density of an output image becomes invisible, caused by interference between the frequency of the AC component of the charging voltage and the frequency at which the grooves pass the developing position.

Abstract translation: 图像形成装置包括承载潜像的图像载体; 充电装置，用具有AC分量的充电电压对图像载体进行充电; 以及辊，其在显影位置承载要供应到图像载体的显影剂，其中辊的表面设置有轴向形成的凹槽，充电电压的AC分量的频率和设置在其上的凹槽的数量 辊被设定为使得由充电电压的AC分量的频率和槽通过显影位置的频率之间的干扰引起的输出图像的密度的不均匀性变得不可见。

公开(公告)号：US07697864B2

公开(公告)日：2010-04-13

申请号：US11902295

申请日：2007-09-20

Applicant: Shigeru Inaba ,  Shota Oba ,  Takashi Yamamuro ,  Makoto Hirota ,  Masahiro Andoh

Inventor： Shigeru Inaba ,  Shota Oba ,  Takashi Yamamuro ,  Makoto Hirota ,  Masahiro Andoh

IPC: G03G15/08

CPC classification number: G03G15/0817

Abstract: A developing device includes a housing that stores developer; a developing roll that is rotatably supported in the housing and has a developing region with a roughened surface that supplies developer to an image region of an image holding member; a step portion that is formed at both sides of the developing region of the developing roll and whose diameter is smaller than that of the developing region; and a seal member that contacts a region of the step portion that is opposite to the image holding member.

Abstract translation: 显影装置包括存储显影剂的壳体; 显影辊，其被可旋转地支撑在所述壳体中，并具有将显影剂供应到图像保持部件的图像区域的具有粗糙表面的显影区域; 台阶部，其形成在显影辊的显影区域的两侧，其直径小于显影区域的直径; 以及密封构件，其与台阶部分的与图像保持构件相对的区域接触。

公开(公告)号：US20080199210A1

公开(公告)日：2008-08-21

申请号：US11902295

申请日：2007-09-20

Applicant: Shigeru Inaba ,  Shota Oba ,  Takashi Yamamuro ,  Makoto Hirota ,  Masahiro Andoh

Inventor： Shigeru Inaba ,  Shota Oba ,  Takashi Yamamuro ,  Makoto Hirota ,  Masahiro Andoh

IPC: G03G15/08

CPC classification number: G03G15/0817

Abstract: A developing device comprises: a housing that stores developer; a developing roll that is rotatably supported in the housing and has a developing region with a roughened surface that supplies developer to an image region of an image holding member; a step portion that is formed at both sides of the developing region of the developing roll and whose diameter is smaller than that of the developing region; and a seal member that contacts a region of the step portion that is opposite to the image holding member.

Abstract translation: 显影装置包括：存储显影剂的壳体; 显影辊，其被可旋转地支撑在所述壳体中，并具有将显影剂供应到图像保持部件的图像区域的具有粗糙表面的显影区域; 台阶部，其形成在显影辊的显影区域的两侧，其直径小于显影区域的直径; 以及密封构件，其与台阶部分的与图像保持构件相对的区域接触。

公开(公告)号：US20080080905A1

公开(公告)日：2008-04-03

申请号：US11783979

申请日：2007-04-13

Applicant: Makoto Hirota ,  Takashi Yamamuro ,  Shigeru Inaba ,  Shota Oba ,  Akihiko Noda ,  Yoshifumi Ozaki

Inventor： Makoto Hirota ,  Takashi Yamamuro ,  Shigeru Inaba ,  Shota Oba ,  Akihiko Noda ,  Yoshifumi Ozaki

IPC: G03G15/08 ,  G03G15/09

CPC classification number: G03G15/0266 ,  G03G15/0818

Abstract: An image forming apparatus includes an image carrier that carries a latent image; a charging device that charges the image carrier with a charging voltage having an AC component; and a roller that carries a developer to be supplied to the image carrier in a developing position, with a surface of the roller provided with axially-formed grooves, the frequency of the AC component of the charging voltage and the number of the grooves provided on the roller being set so that non-uniformity in density of an output image becomes invisible, caused by interference between the frequency of the AC component of the charging voltage and the frequency at which the grooves pass the developing position.

Abstract translation: 图像形成装置包括承载潜像的图像载体; 充电装置，用具有AC分量的充电电压对图像载体进行充电; 以及辊，其在显影位置承载要供应到图像载体的显影剂，其中辊的表面设置有轴向形成的凹槽，充电电压的AC分量的频率和设置在其上的凹槽的数量 辊被设定为使得由充电电压的AC分量的频率和槽通过显影位置的频率之间的干扰引起的输出图像的密度的不均匀性变得不可见。

公开(公告)号：US5541736A

公开(公告)日：1996-07-30

申请号：US225070

申请日：1994-04-08

Applicant: Toshiaki Sagara ,  Toru Teshigawara ,  Yasuki Yamauchi ,  Haruyuki Namba ,  Takuto Tanaka ,  Shigeru Inaba ,  Koichiro Shinohara ,  Takahide Inoue ,  Jun Abe

Inventor： Toshiaki Sagara ,  Toru Teshigawara ,  Yasuki Yamauchi ,  Haruyuki Namba ,  Takuto Tanaka ,  Shigeru Inaba ,  Koichiro Shinohara ,  Takahide Inoue ,  Jun Abe

IPC: B41J2/44 ,  G03G15/01 ,  H04N1/50 ,  H04N1/52

CPC classification number: H04N1/52 ,  G03G15/011 ,  H04N1/506

Abstract: A color-image forming apparatus includes: an electrostatic latent image holder; electrostatic latent image forming unit for forming a plurality of electrostatic latent images on the image holder; a scanning unit for scanning the electrostatic latent image holder periodically at predetermined timings; developing devices for developing each of the plurality of electrostatic latent images by toners of each of different colors respectively, and forming thus developed toner image on the image holder; a simultaneously transferring device for simultaneously transferring the plurality of toner images onto a transfer medium; fixing device for fixing the toner image on the transfer medium; and timing-setting unit for setting a timing at which said scanning means starts scanning at each of slow scanning pitches in the direction of fast scanning for each of the plurality of colors; wherein the timings which are allotted to each of the colors are different each other so that the starting position of the scanning of each color at each of slow scanning pitches in the direction of the fast scanning is successively shifted at a predetermined distance.

Abstract translation: 彩色图像形成装置包括：静电潜像保持器; 静电潜像形成单元，用于在图像保持器上形成多个静电潜像; 扫描单元，用于以预定的定时周期性地扫描静电潜像保持器; 显影装置，用于分别通过各种不同颜色的调色剂来显影多个静电潜像中的每一个，并且在图像保持器上形成如此显影的调色剂图像; 同时传送装置，用于同时将多个调色剂图像转印到转印介质上; 用于将调色剂图像定影在转印介质上的定影装置; 以及定时设定单元，用于根据所述多种颜色中的每一种来设置所述扫描装置在快速扫描方向上的每个慢扫描间距处开始扫描的定时; 其中分配给每种颜色的定时彼此不同，使得在快速扫描的方向上的每个慢扫描间距处的每种颜色的扫描的开始位置以预定距离连续偏移。

公开(公告)号：US08437649B2

公开(公告)日：2013-05-07

申请号：US12880469

申请日：2010-09-13

Applicant: Takashi Ochi ,  Shigeru Inaba ,  Shota Oba

Inventor： Takashi Ochi ,  Shigeru Inaba ,  Shota Oba

IPC: G03G15/00

CPC classification number: G03G15/50 ,  G03G15/0806 ,  G03G15/0818 ,  G03G2215/00029 ,  G03G2215/0888

Abstract: A developing device includes: a plurality of developer retaining bodies that retain developer and rotate, and that respectively convey the developer, which is supplied to each of the developer retaining bodies from a developer supply section, to an image bearing body that rotates and bears a latent image; and a speed changing unit that is adapted to change a rotation speed of at least one of the developer retaining bodies excluding a developer retaining body that is furthest downstream side in a direction of rotation of the image bearing body.

Abstract translation: 显影装置包括：多个显影剂保持体，其保持显影剂并旋转，并且将从显影剂供应部分提供给每个显影剂保持体的显影剂分别输送到旋转并承载的图像承载体 潜像 以及变速单元，其适于改变除了图像承载体的旋转方向最远的下游侧的显影剂保持体之外的至少一个显影剂保持体的旋转速度。