DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS INCLUDING SAME
    16.
    发明申请
    DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS INCLUDING SAME 有权
    开发装置,工艺盒和图像形成装置,包括它们

    公开(公告)号:US20120057907A1

    公开(公告)日:2012-03-08

    申请号:US13222588

    申请日:2011-08-31

    IPC分类号: G03G15/09

    CPC分类号: G03G15/0818 G03G15/0928

    摘要: A development device including a developer container, a developer bearer, a magnetic field generator, a developer agitator to supply the developer to the developer bearer, and a developer regulator to adjust a layer thickness of the developer carried on the developer bearer. Multiple oval recesses oblique to the axial direction of the developer bearer are formed in the outer circumferential surface of the developer bearer and arranged in a circumferential direction and the axial direction thereof. An upstream inner wall of the recess in the rotational direction of the developer bearer applies a force to the developer as the developer bearer rotates, and an angle between a long axis of the recess and the axial direction is set so that the force applied by the upstream inner wall of the recess has a component in a direction substantially identical to the developer conveyance direction of the developer agitator.

    摘要翻译: 一种显影装置,包括显影剂容器,显影剂载体,磁场发生器,将显影剂供应到显影剂载体的显影剂搅拌器,以及显影剂调节器,用于调节显影剂载体承载的显影剂的层厚度。 在显影剂载体的外周面上形成有与显影剂承载体的轴向倾斜的多个椭圆形凹部,并且沿圆周方向及其轴向布置。 当显影剂载体旋转时,沿着显影剂载体的旋转方向的凹部的上游内壁向显影剂施加力,并且设定凹部的长轴与轴向之间的角度,使得由 凹槽的上游内壁具有与显影剂搅拌器的显影剂输送方向基本相同的方向的部件。

    Developing device, and image forming apparatus and process cartridge comprising the same
    17.
    发明授权
    Developing device, and image forming apparatus and process cartridge comprising the same 有权
    显影装置,以及包括该装置的成像装置和处理盒

    公开(公告)号:US07813680B2

    公开(公告)日:2010-10-12

    申请号:US12398496

    申请日:2009-03-05

    IPC分类号: G03G15/09

    CPC分类号: G03G15/0921

    摘要: To downsize a developing device in the developing carrier axial direction without generating image concentration irregularities from recirculation of developer in the magnetic roller end regions, an N2 pole and an N3 pole, which are mutually adjacent having the same polarity (N polarity), and which are for generating a magnetic force for removing from a developing sleeve a developer that has passed through a developing region, are provided on a magnetic roller. Magnets of this developing device, which are for generating a magnetic field to displace to the inside in the axial direction magnetic force lines that cause peeling force in the direction of separation from the developing sleeve to act on developer on the developing sleeve, based on the magnetic force of the N2 pole and the N3 pole, and that pass through the axial direction end regions within a developer separation region on the developing sleeve, are provided on the outside of the magnetic roller.

    摘要翻译: 为了在显影载体轴向方向上的显影装置的尺寸减小,而不产生图像浓度不均匀性,从而使磁辊端区域中的显影剂再循环,具有相同极性(N极性)的相互相邻的N2极和N3极, 用于产生用于从显影套筒移除已经通过显影区域的显影剂的磁力,设置在磁性辊上。 该显影装置的磁体,用于产生磁场以向轴向方向的内侧移动,该磁力线基于显影套筒上的显影剂分离的方向产生剥离力,作用于显影套筒上的显影剂,基于 在磁辊的外侧设置N2极和N3极的磁力,并且穿过显影套筒上的显影剂分离区域内的轴向端部区域。

    DEVELOPING UNIT, IMAGE FORMING APPARATUS INCORPORATING SAME, AND PROCESS CARTRIDGE INCLUDING SAME
    18.
    发明申请
    DEVELOPING UNIT, IMAGE FORMING APPARATUS INCORPORATING SAME, AND PROCESS CARTRIDGE INCLUDING SAME 有权
    开发单元,包含其的图像形成装置和包括其的处理盒

    公开(公告)号:US20090245889A1

    公开(公告)日:2009-10-01

    申请号:US12412019

    申请日:2009-03-26

    IPC分类号: G03G15/09

    CPC分类号: G03G15/0921 G03G2215/0634

    摘要: A developing unit includable in a process cartridge and in an image forming apparatus includes a developer bearing member including a magnetic field generator and a nonmagnetic hollow member, a developer container, an agitation/conveyance member, and a developer regulating member. The magnetic field generator has first and second magnetic poles to generate respective magnetic forces for removing the developer from the developer bearing member after the developer passes the development region. A developer-releasing region releases the developer from the developer bearing member using a release force. The developer is disposed higher than a surface of the developer in the developer storing chamber. A component of a magnetic flux density of the magnetic field generated by the magnetic field generator in a direction normal to the developer-releasing region is directed to a same direction as the first and second magnetic poles across the developer-releasing region without forming a local maximum point.

    摘要翻译: 包括处理盒和图像形成装置中的显影单元包括包括磁场发生器和非磁性中空构件的显影剂承载构件,显影剂容器,搅拌/输送构件和显影剂调节构件。 磁场发生器具有第一和第二磁极,以在显影剂通过显影区域之后产生用于从显影剂承载部件移除显影剂的相应磁力。 显影剂释放区域使用释放力将显影剂从显影剂承载构件释放。 显影剂被布置成高于显影剂储存室中显影剂的表面。 由磁场发生器沿垂直于显影剂释放区域的方向产生的磁场的磁通密度分量指向与显影剂释放区域的第一和第二磁极相同的方向,而不形成局部 最大点。

    Development device, and process cartridge and image forming apparatus incorporating same
    19.
    发明授权
    Development device, and process cartridge and image forming apparatus incorporating same 有权
    开发装置,以及包含其的处理盒和图像形成装置

    公开(公告)号:US08824932B2

    公开(公告)日:2014-09-02

    申请号:US13019610

    申请日:2011-02-02

    IPC分类号: G03G15/08 G03G15/09

    CPC分类号: G03G15/0818 G03G15/0921

    摘要: A development device includes a developer container, a developer carrier, exposed partly from a casing, facing a latent image carrier in a development area, a magnetic field generator inside the developer carrier, having multiple magnetic poles including a conveyance pole to convey the developer downstream from the development area to a developer release portion, a developer agitator, and a developer regulator. A predetermined gap is kept between an outer surface of the developer carrier and an inner wall of the casing downstream from an opening of the casing, upstream from a developer release portion, in a direction in which the developer carrier rotates. Multiple recesses are formed in the outer surface of the developer carrier at a pitch in a circumferential direction shorter than half a width of a magnetic flux density of the developer conveyance pole in a direction perpendicular to an axial direction of the developer carrier.

    摘要翻译: 显影装置包括显影剂容器,显影剂载体,其部分地从外壳暴露于显影区域中的潜像载体,显影剂载体内部的磁场发生器,具有多个磁极,所述多个磁极包括输送极以将显影剂下游 从显影区域到显影剂释放部分,显影剂搅拌器和显影剂调节器。 在显影剂载体旋转的方向上,在显影剂释放部分的上游,在显影剂载体的外表面和壳体的内壁从壳体的开口的下游侧保持预定的间隙。 在显影剂载体的外表面上以与显影剂载体的轴向垂直的方向的显影剂输送极的磁通密度的一半宽度的圆周方向的间距形成多个凹部。

    Developing unit, image forming apparatus incorporating same, and process cartridge including same
    20.
    发明授权
    Developing unit, image forming apparatus incorporating same, and process cartridge including same 有权
    显影单元,结合其的图像形成装置和包括其的处理盒

    公开(公告)号:US08331834B2

    公开(公告)日:2012-12-11

    申请号:US12412019

    申请日:2009-03-26

    CPC分类号: G03G15/0921 G03G2215/0634

    摘要: A developing unit includable in a process cartridge and in an image forming apparatus includes a developer bearing member including a magnetic field generator and a nonmagnetic hollow member, a developer container, an agitation/conveyance member, and a developer regulating member. The magnetic field generator has first and second magnetic poles to generate respective magnetic forces for removing the developer from the developer bearing member after the developer passes the development region. A developer-releasing region releases the developer from the developer bearing member using a release force. The developer is disposed higher than a surface of the developer in the developer storing chamber. A component of a magnetic flux density of the magnetic field generated by the magnetic field generator in a direction normal to the developer-releasing region is directed to a same direction as the first and second magnetic poles across the developer-releasing region without forming a local maximum point.

    摘要翻译: 包括处理盒和图像形成装置中的显影单元包括包括磁场发生器和非磁性中空构件的显影剂承载构件,显影剂容器,搅拌/输送构件和显影剂调节构件。 磁场发生器具有第一和第二磁极,以在显影剂通过显影区域之后产生用于从显影剂承载部件移除显影剂的相应磁力。 显影剂释放区域使用释放力将显影剂从显影剂承载构件释放。 显影剂被布置成高于显影剂储存室中显影剂的表面。 由磁场发生器沿垂直于显影剂释放区域的方向产生的磁场的磁通密度分量指向与显影剂释放区域的第一和第二磁极相同的方向,而不形成局部 最大点。