公开(公告)号：US08811863B2

公开(公告)日：2014-08-19

申请号：US13041891

申请日：2011-03-07

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

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

IPC分类号： G03G15/09

CPC分类号： G03G15/0921

摘要： 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.

摘要翻译： 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：US08676094B2

公开(公告)日：2014-03-18

申请号：US13298976

申请日：2011-11-17

申请人： Yoshitaka Nakajima ,  Shigeru Inaba ,  Shota Oba ,  Takashi Ochi ,  Akihisa Maruyama ,  Toshihiro Kanematsu

发明人： Yoshitaka Nakajima ,  Shigeru Inaba ,  Shota Oba ,  Takashi Ochi ,  Akihisa Maruyama ,  Toshihiro Kanematsu

IPC分类号： G03G15/08

CPC分类号： G03G15/081 ,  G03G15/09

摘要： A developing device includes a developer container; a developer holding body including a magnet member and a substantially cylindrical member; a transport member including a rotating shaft and a substantially spiral transport blade; a layer-thickness regulating member; and an interrupting member that is arranged between the developer holding body and the transport member, that intersects with a first virtual plane passing through a facing position between the regulating member and the developer holding body and being adjacent to a rotation locus of a radial-direction outer edge of the transport blade at a position at which a speed in a circumferential direction of the transport blade has a speed component toward the regulating member, and a second virtual plane passing through rotation centers of the developer holding body and transport member, and that interrupts movement of the developer pushed and moving in the radial direction of the transport blade.

摘要翻译： 显影装置包括显影剂容器; 显影剂保持体，包括磁体构件和大致圆筒形构件; 传送构件，包括旋转轴和基本螺旋形的传送叶片; 层厚调节构件; 以及布置在显影剂保持体和传送构件之间的中断构件，其与通过调节构件和显影剂保持体之间的相对位置的第一虚拟平面相交并且与径向方向的旋转轨迹相邻 输送叶片的周向方向上的速度朝向限制部件的速度分量的位置处的输送叶片的外缘，以及通过显影剂保持体和输送部件的旋转中心的第二虚拟平面， 阻止显影剂在运输叶片的径向方向上推动和移动的运动。

公开(公告)号：US08548364B2

公开(公告)日：2013-10-01

申请号：US12729010

申请日：2010-03-22

申请人： Shota Oba ,  Shigeru Inaba ,  Takashi Yamamuro ,  Takashi Ochi ,  Shinichi Kuramoto

发明人： Shota Oba ,  Shigeru Inaba ,  Takashi Yamamuro ,  Takashi Ochi ,  Shinichi Kuramoto

IPC分类号： G03G15/08

CPC分类号： G03G15/0928 ,  G03G15/0818

摘要： A developing device includes: an magnetic field generating unit that generates an magnetic field; and a cylindrical developer holder, to which a voltage is applied, that surrounds the magnetic field generating unit and rotates, the cylindrical developer holder: having an outer circumferential surface having a plurality of grooves that extend in a direction of a rotational axis, the outer circumferential surface being capable of holding developer including a magnetic substance by using the magnetic field generated by the magnetic field generation unit, an electrical resistance of an inner wall surface of each of the grooves being higher than an electrical resistance of the magnetic substance included in the developer; and supplying the developer to an image holder that holds an electrostatic latent image.

摘要翻译： 显影装置包括：产生磁场的磁场产生单元; 以及围绕所述磁场发生单元并旋转的施加有电压的圆筒形显影剂保持器，所述圆筒形显影剂保持器具有外周表面，所述外周表面具有沿旋转轴线的方向延伸的多个凹槽，所述外部 周向表面能够通过使用由磁场产生单元产生的磁场来保持包括磁性物质的显影剂，每个凹槽的内壁表面的电阻高于包含在磁场中的磁性物质的电阻 开发商 并将显影剂供给到保持静电潜像的图像保持器。

公开(公告)号：US08447216B2

公开(公告)日：2013-05-21

申请号：US13032160

申请日：2011-02-22

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

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

IPC分类号： G03G15/08

CPC分类号： G03G15/0808 ,  G03G15/0812 ,  G03G15/09

摘要： 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.

摘要翻译： 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：US08768225B2

公开(公告)日：2014-07-01

申请号：US13273800

申请日：2011-10-14

申请人： Shota Oba ,  Takashi Ochi ,  Shigeru Inaba ,  Yoshitaka Nakajima ,  Akihisa Maruyama ,  Toshihiro Kanematsu

发明人： Shota Oba ,  Takashi Ochi ,  Shigeru Inaba ,  Yoshitaka Nakajima ,  Akihisa Maruyama ,  Toshihiro Kanematsu

IPC分类号： G03G15/08

CPC分类号： G03G15/065 ,  G03G15/0818 ,  G03G2215/0132 ,  G03G2215/0822 ,  G03G2215/0838

摘要： 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.

摘要翻译： 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：US20110222878A1

公开(公告)日：2011-09-15

申请号：US12880469

申请日：2010-09-13

申请人： Takashi OCHI ,  Shigeru Inaba ,  Shota Oba

发明人： Takashi OCHI ,  Shigeru Inaba ,  Shota Oba

IPC分类号： G03G15/08

CPC分类号： G03G15/50 ,  G03G15/0806 ,  G03G15/0818 ,  G03G2215/00029 ,  G03G2215/0888

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08437649B2

公开(公告)日：2013-05-07

申请号：US12880469

申请日：2010-09-13

申请人： Takashi Ochi ,  Shigeru Inaba ,  Shota Oba

发明人： Takashi Ochi ,  Shigeru Inaba ,  Shota Oba

IPC分类号： G03G15/00

CPC分类号： G03G15/50 ,  G03G15/0806 ,  G03G15/0818 ,  G03G2215/00029 ,  G03G2215/0888

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08401440B2

公开(公告)日：2013-03-19

申请号：US12853845

申请日：2010-08-10

申请人： Shota Oba ,  Shigeru Inaba ,  Takashi Ochi

发明人： Shota Oba ,  Shigeru Inaba ,  Takashi Ochi

IPC分类号： G03G15/09

CPC分类号： G03G15/0935 ,  G03G2215/0648

摘要： A developing device includes: a first developer holding body with a first cylinder member disposed facing the outer peripheral surface of a rotating latent image holding body, and a first magnet disposed at the inside of the first cylinder member; a second developer holding body with a second cylinder member disposed facing the outer peripheral surface of the latent image holding body, further downstream in the latent image holding body rotation direction than the first developer holding body, and a second magnet disposed at the inside of the second cylinder member; and an adjustment mechanism that adjusts the relative position of the first magnet to the second magnet in a circumferential direction.

摘要翻译： 显影装置包括：第一显影剂保持体，其具有面对旋转的潜像保持体的外周面设置的第一圆筒部件和设置在第一圆筒部件的内侧的第一磁体; 第二显影剂保持体，具有与潜像保持体的外周面相对配置的第二圆筒部件，在潜像保持体旋转方向上比第一显影剂保持体的下游更靠近，第二磁体配置在第二显像剂保持体的内侧 第二圆筒构件; 以及调整机构，其在周向上调整第一磁体与第二磁体的相对位置。

公开(公告)号：US20120230737A1

公开(公告)日：2012-09-13

申请号：US13298976

申请日：2011-11-17

申请人： Yoshitaka Nakajima ,  Shigeru Inaba ,  Shota Oba ,  Takashi Ochi ,  Akihisa Maruyama ,  Toshihiro Kanematsu

发明人： Yoshitaka Nakajima ,  Shigeru Inaba ,  Shota Oba ,  Takashi Ochi ,  Akihisa Maruyama ,  Toshihiro Kanematsu

IPC分类号： G03G15/09

CPC分类号： G03G15/081 ,  G03G15/09

摘要： A developing device includes a developer container; a developer holding body including a magnet member and a substantially cylindrical member; a transport member including a rotating shaft and a substantially spiral transport blade; a layer-thickness regulating member; and an interrupting member that is arranged between the developer holding body and the transport member, that intersects with a first virtual plane passing through a facing position between the regulating member and the developer holding body and being adjacent to a rotation locus of a radial-direction outer edge of the transport blade at a position at which a speed in a circumferential direction of the transport blade has a speed component toward the regulating member, and a second virtual plane passing through rotation centers of the developer holding body and transport member, and that interrupts movement of the developer pushed and moving in the radial direction of the transport blade.

摘要翻译： 显影装置包括显影剂容器; 显影剂保持体，包括磁体构件和大致圆筒形构件; 传送构件，包括旋转轴和基本螺旋形的传送叶片; 层厚调节构件; 以及布置在显影剂保持体和传送构件之间的中断构件，其与通过调节构件和显影剂保持体之间的相对位置的第一虚拟平面相交并且与径向方向的旋转轨迹相邻 输送叶片的周向方向上的速度朝向限制部件的速度分量的位置处的输送叶片的外缘，以及通过显影剂保持体和输送部件的旋转中心的第二虚拟平面， 阻止显影剂在运输叶片的径向方向上推动和移动的运动。

公开(公告)号：US07702264B2

公开(公告)日：2010-04-20

申请号：US11783979

申请日：2007-04-13

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

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

IPC分类号： G03G15/08

CPC分类号： G03G15/0266 ,  G03G15/0818

摘要： 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.

摘要翻译： 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。