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52 条记录 (耗时 0.068 秒)

    Electrophotographic apparatus
    1.
    发明授权
    Electrophotographic apparatus 失效
    电子照相设备

    公开(公告)号：US5923933A

    公开(公告)日：1999-07-13

    申请号：US23462

    申请日：1998-02-13

    申请人： Masayasu Anzai ,  Tsuneaki Kawanishi ,  Yoshitaka Fujinuma ,  Hiroyoshi Matsumoto ,  Yasuo Takuma ,  Hisao Okada ,  Masayuki Ainoya ,  Takashi Suzuki ,  Yuichiro Suzuki ,  Tomonari Hokkyo ,  Koji Kato ,  Katsuya Kawai ,  Tsutomu Nakagawa

    发明人： Masayasu Anzai ,  Tsuneaki Kawanishi ,  Yoshitaka Fujinuma ,  Hiroyoshi Matsumoto ,  Yasuo Takuma ,  Hisao Okada ,  Masayuki Ainoya ,  Takashi Suzuki ,  Yuichiro Suzuki ,  Tomonari Hokkyo ,  Koji Kato ,  Katsuya Kawai ,  Tsutomu Nakagawa

    IPC分类号： G03G15/09

    CPC分类号： G03G15/09 ,  G03G2215/0609 ,  G03G2215/0648

    摘要： A uniform image is obtained by matching the sliding friction force, the moving speed and the developing agent in a developing region of two developing rollers and an electric characteristic of a photosensitive body used for image development. Two developing rollers rotating in directions opposite to each other are used, the moving direction of the first developing roller being opposite to the moving direction of the photosensitive body, and a circumferential speed ratio of a circumferential speed of the first developing roller to a circumferential speed of the photosensitive body is within a rage of 0.5 to 2.5; and the moving direction of the second developing roller is equal to the moving direction of the photosensitive body, and a circumferential speed ratio of a circumferential speed of the second developing roller to a circumferential speed of the photosensitive body is within a range of 1.5 to 3.5. A ratio of the sliding friction force between a magnetic brush for developing agent and the photosensitive body formed in the first developing roller and the sliding friction force between a magnetic brush for developing agent and the photosensitive body formed in the second developing roller is within a range of 0.9 to 2.1.

    摘要翻译： 通过匹配两个显影辊的显影区域中的滑动摩擦力，移动速度和显影剂以及用于图像显影的感光体的电特性来获得均匀的图像。 使用沿彼此相反的方向旋转的两个显影辊，第一显影辊的移动方向与感光体的移动方向相反，并且第一显影辊的圆周速度与圆周速度的圆周速度比 的感光体在0.5〜2.5的范围内; 并且第二显影辊的移动方向等于感光体的移动方向，并且第二显影辊的圆周速度与感光体的圆周速度的圆周速度比在1.5至3.5的范围内 。 用于显影剂的磁刷和形成在第一显影辊中的感光体之间的滑动摩擦力与显影剂用磁刷与形成在第二显影辊中的感光体之间的滑动摩擦力之间的滑动摩擦力的比率在一定范围内 为0.9至2.1。

    Developing device
    2.
    发明授权
    Developing device 失效
    开发设备

    公开(公告)号：US5907755A

    公开(公告)日：1999-05-25

    申请号：US73768

    申请日：1998-05-07

    申请人： Yasuo Takuma ,  Yoshitaka Fujinuma ,  Masayasu Anzai ,  Hisao Okada

    发明人： Yasuo Takuma ,  Yoshitaka Fujinuma ,  Masayasu Anzai ,  Hisao Okada

    IPC分类号： G03G15/08 ,  G03G13/08 ,  G03G13/09

    CPC分类号： G03G13/08 ,  G03G13/09 ,  G03G2215/0648

    摘要： A predetermined mathematical formula, which defines an occurrence degree of an image defect where the toner layer is thinned or no toner image is formed, is set up, which is valid for a developing device including a reverse turn developer carrier and a forward turn developer carrier. A difference between the total sum A of the values by the above formula showing the occurrence degree of the image defect on the forward turn developing roller and the total sum B of the values by the above formula showing the occurrence degree on the reverse turn developing roller, i.e., (A-B), is selected within a range of -0.56 to +0.5.

    摘要翻译： 确定限定了调色剂层变薄或不形成调色剂图像的图像缺陷的发生程度的预定数学公式，其对于包括反转显影剂载体和正向转动显影剂载体的显影装置是有效的 。 表示前转显影辊上的图像缺陷的发生程度的上述公式的总和A与通过上述公式的值的总和B之间的差值表示反转显影辊的发生程度 ，即（AB）在-0.56至+0.5的范围内选择。

    Developing system having a plurality of developing rollers with opposing magnets of same polarity
    3.
    发明授权
    Developing system having a plurality of developing rollers with opposing magnets of same polarity 有权
    具有多个具有相同极性的相对磁体的显影辊的显影系统

    公开(公告)号：US06330414B1

    公开(公告)日：2001-12-11

    申请号：US09409079

    申请日：1999-09-30

    申请人： Yasuo Takuma ,  Yoshitaka Fujinuma ,  Tomonari Hokkyou ,  Masayasu Anzai ,  Koji Kato

    发明人： Yasuo Takuma ,  Yoshitaka Fujinuma ,  Tomonari Hokkyou ,  Masayasu Anzai ,  Koji Kato

    IPC分类号： G03G1508

    CPC分类号： G03G15/09 ,  G03G2215/0648

    摘要： In a developing system containing a combination of forward-rotating and a backward-rotating developing rollers, a steady quantity of developing agent should be supplied to the developing rollers for high-quality printed images. This requirement can be satisfied by placing a doctor blade between an intersection point, where a line connecting the central axis of one of the developing rollers and its polarity reversing position meets a line connecting the central axis of the other of the developing rollers and its polarity reversing position, and the developing roller pair. Further, the doctor blade should be located on the upstream side of the developing agent flow relative to the central axes of the backward-rotating developing roller and the forward rotating developing roller with its rightmost side (upstream side) in parallel with the line connecting the central axes of the developing rollers, and the doctor gap (on the side of the developing roller to which the developing agent is supplied) should be greater than a minimum gap (doctor gap) between one end of the doctor blade and the surface of the developing roller to which the developing agent is first supplied.

    摘要翻译： 在包含正向旋转和向后旋转的显影辊的组合的显影系统中，应将稳定量的显影剂供应到显影辊以获得高质量的印刷图像。 这种要求可以通过将刮刀放置在交叉点之间，其中连接显影辊中的一个的中心轴线和其极性反转位置的线与连接另一个显影辊的中心轴的线和其极性 反转位置和显影辊对。 此外，刮刀应当位于显影剂流的上游侧，相对于反转显影辊和向前旋转的显影辊的中心轴线，其最右侧（上游侧）与连接 显影辊的中心轴线和刮刀间隙（在显影剂供应的显影辊侧）应大于刮刀的一端与刮刀的表面之间的最小间隙（刮刀间隙） 首先提供显影剂的显影辊。

    DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
    6.
    发明申请
    DEVELOPING DEVICE AND IMAGE FORMING APPARATUS 有权
    开发设备和图像形成装置

    公开(公告)号：US20090103954A1

    公开(公告)日：2009-04-23

    申请号：US12251580

    申请日：2008-10-15

    申请人： Masayoshi NAKAYAMA ,  Yoshitaka Fujinuma ,  Susumu Tateyama ,  Tatsuya Kubo

    发明人： Masayoshi NAKAYAMA ,  Yoshitaka Fujinuma ,  Susumu Tateyama ,  Tatsuya Kubo

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0808 ,  G03G2215/0844

    摘要： A developing device that can suitably discharge developer from the developing device by the amount of developer in the developing device increased by carrier supplemented into the developing device, including: a supply transport screw and a receiving transport screw, the rotational axes of which are mutually parallel in relation to an image support member and which are arranged in a top and bottom positional relationship, and an inclined transport screw which is arranged at an incline between one end of the supply transport screw and the other end of the receiving transport screw; supply means for supplying new carrier into a casing; and a discharge port and discharge means for discharging part of the developer housed in the casing to the outside, the discharge port being provided on the part of the casing corresponding to the upper part of the inclined transport screw.

    摘要翻译： 一种显影装置，其能够通过辅助显影装置的载体的显影装置中的显影剂的量适当地将显影剂从显影装置排出，包括：供给输送螺杆和接收输送螺杆，其旋转轴相互平行 相对于图像支撑构件而布置成顶部​​和底部位置关系，以及倾斜的输送螺钉，其设置在供给运送螺杆的一端和接收运送螺钉的另一端之间的倾斜处; 用于将新载体供应到壳体中的供应装置; 以及用于将容纳在壳体中的一部分显影剂排出到外部的排出口和排出装置，排出口设置在与倾斜传送螺杆的上部对应的壳体的一部分上。

    DEVELOPING DEVICE AND IMAGE FORMING APPARATUS EQUIPPED WITH THE SAME
    7.
    发明申请
    DEVELOPING DEVICE AND IMAGE FORMING APPARATUS EQUIPPED WITH THE SAME 有权
    开发设备和图像形成装置

    公开(公告)号：US20080240792A1

    公开(公告)日：2008-10-02

    申请号：US12042848

    申请日：2008-03-05

    申请人： Emi Kita ,  Koichi Kato ,  Kiyonori Tsuda ,  Yuki Oshikawa ,  Susumu Tateyama ,  Yoshitaka Fujinuma

    发明人： Emi Kita ,  Koichi Kato ,  Kiyonori Tsuda ,  Yuki Oshikawa ,  Susumu Tateyama ,  Yoshitaka Fujinuma

    IPC分类号： G03G15/095

    CPC分类号： G03G15/0887 ,  G03G15/0893 ,  G03G2215/0838

    摘要： A developing device capable of preventing deterioration of the image quality, which is caused when a developer recovered by a developing roller re-adheres thereto, and an image forming apparatus equipped with the developing device. The developer conveyance amount on the upstream side of an agitation conveyance path in a developer conveyance direction becomes larger than the amount of developer to be transported from a recovery conveyance path to the agitation conveyance path, by making the developer conveyance amount on the upstream side of an agitating screw in the developer conveyance direction equal to or larger than the developer conveyance amount on the downstream side of a recovery screw in the developer conveyance direction. Accordingly, the amount of developer existing on the upstream side of the agitation conveyance path in the developer conveyance direction becomes small, whereby the developer can be delivered smoothly from the recovery conveyance path to the agitation conveyance path. Therefore, the bulk of the developer existing on the downstream side of the recovery conveyance path in the developer conveyance direction can be prevented from reaching the level where the recovered developer re-adheres to a developing roller, and further the developer existing on the downstream side of the recovery conveyance path in the developer conveyance direction can be prevented from re-adhering to the developing roller.

    摘要翻译： 一种能够防止由显影辊回收的显影剂重新附着的显影剂的图像质量劣化的显影装置和配备有显影装置的图像形成装置。 在显影剂输送方向上的搅拌输送路径的上游侧的显影剂输送量比通过将回收输送路径向搅拌输送路径输送的显影剂的量变大， 显影剂输送方向上的搅拌螺杆等于或大于在显影剂输送方向上的回收螺杆的下游侧的显影剂输送量。 因此，显影剂输送方向上的搅拌输送路的上游侧的显影剂的量变小，能够使显影剂从回收输送路径平稳地输送到搅拌输送路径。 因此，可以防止在显影剂输送方向上在回收输送路径的下游侧存在的显影剂的体积达到恢复的显影剂重新粘附到显影辊的水平，并且进一步存在于下游侧的显影剂 可以防止显影剂传送方向上的恢复传送路径再次粘附到显影辊上。

    DEVELOPING UNIT, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
    8.
    发明申请
    DEVELOPING UNIT, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS 有权
    开发单元，过程盒和图像形成装置

    公开(公告)号：US20080199223A1

    公开(公告)日：2008-08-21

    申请号：US12027636

    申请日：2008-02-07

    申请人： Susumu Tateyama ,  Yoshitaka Fujinuma ,  Masayoshi Nakayama ,  Tatsuya Kubo

    发明人： Susumu Tateyama ,  Yoshitaka Fujinuma ,  Masayoshi Nakayama ,  Tatsuya Kubo

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0822 ,  G03G2215/0819 ,  G03G2215/0838

    摘要： A developing unit containing developer including carrier and toner and developing a latent image formed on an image carrier is disclosed. The developing unit includes multiple conveyor members configured to convey the contained developer in respective longitudinal directions so as to form a circulation channel; a supply part configured to supplement the carrier in the developing unit; a discharge part configured to discharge a first part of the contained developer outside the developing unit; and a bypass channel configured to cause a second part of the developer to return to the upstream side of the circulation channel without passing a position where the discharge part is provided.

    摘要翻译： 公开了一种显影单元，其包含显影剂，其包含载体和调色剂并且显影形成在图像载体上的潜像。 显影单元包括多个传送器构件，其构造成在相应的纵向方向上输送容纳的显影剂，以便形成循环通道; 供给部构造成补充显影单元中的载体​​; 排出部构造成将显影单元外部的所盛放的显影剂的第一部分排出; 以及旁通通道，其构造成使得显影剂的第二部分不经过设置有排出部的位置而返回到循环通道的上游侧。