Magnetic roller, developer carrier, developing device, process cartridge, and image forming apparatus
    5.
    发明授权
    Magnetic roller, developer carrier, developing device, process cartridge, and image forming apparatus 有权
    磁辊,显影剂载体,显影装置,处理盒和成像装置

    公开(公告)号:US07890030B2

    公开(公告)日:2011-02-15

    申请号:US12397712

    申请日:2009-03-04

    IPC分类号: G03G15/09

    CPC分类号: G03G15/0921 G03G2215/0634

    摘要: A magnetic roller includes a cylindrical magnetic field generation part (140), a cylindrical support part (143) that contacts both of the edges of the magnetic field generation part (140), further has a smaller diameter than the magnetic field generation part (140), and which is installed upon a common axis thereof as an axis of the cylindrical support part (143), and a depression part (140c) that is installed upon an obverse surface of the cylindrical magnetic field generation part (140), extends in a direction of the axis of the magnetic field generation part (140), and wherein a lengthwise magnet formation is inserted. The cylindrical magnetic field generation part (140) is configured of a main body portion (140a), which is installed upon a central portion of the cylindrical magnetic field generation part (140), and a reinforcing portion (140b), which is installed upon each of both ends, wherein the depression part (140c) is installed across the main body portion (140a) of the magnetic field generation part (140) overall, and the reinforcing portion (140b) is installed between an end of the depression part (140c) and an end of the support part.

    摘要翻译: 磁性辊包括圆柱形磁场产生部分(140),与磁场产生部分(140)的两个边缘接触的圆柱形支撑部分(143),还具有比磁场产生部分(140)更小的直径 ),并且其安装在作为圆柱形支撑部件(143)的轴线的共同轴线上,并且安装在圆柱形磁场产生部件(140)的正面上的凹陷部分(140c)延伸在 磁场产生部分(140)的轴线的方向,并且其中插入纵向磁体形成。 圆柱形磁场产生部分(140)由安装在圆柱形磁场产生部分(140)的中心部分上的主体部分(140a)和加强部分(140b)构成,该加强部分安装在 其中,所述凹部(140c)整体安装在所述磁场产生部(140)的主体部(140a)的两端,所述加强部(140b)安装在所述凹部(140c)的端部 140c)和支撑部分的端部。

    MAGNETIC ROLLER, DEVELOPER CARRIER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
    8.
    发明申请
    MAGNETIC ROLLER, DEVELOPER CARRIER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS 有权
    磁辊,开发者承运人,开发设备,工艺盒和图像形成装置

    公开(公告)号:US20090232563A1

    公开(公告)日:2009-09-17

    申请号:US12397712

    申请日:2009-03-04

    IPC分类号: G03G15/09

    CPC分类号: G03G15/0921 G03G2215/0634

    摘要: A magnetic roller includes a cylindrical magnetic field generation part (140), a cylindrical support part (143) that contacts both of the edges of the magnetic field generation part (140), further has a smaller diameter than the magnetic field generation part (140), and which is installed upon a common axis thereof as an axis of the cylindrical support part (143), and a depression part (140c) that is installed upon an obverse surface of the cylindrical magnetic field generation part (140), extends in a direction of the axis of the magnetic field generation part (140), and wherein a lengthwise magnet formation is inserted. The cylindrical magnetic field generation part (140) is configured of a main body portion (140a), which is installed upon a central portion of the cylindrical magnetic field generation part (140), and a reinforcing portion (140b), which is installed upon each of both ends, wherein the depression part (140c) is installed across the main body portion (140a) of the magnetic field generation part (140) overall, and the reinforcing portion (140b) is installed between an end of the depression part (140c) and an end of the support part.

    摘要翻译: 磁性辊包括圆柱形磁场产生部分(140),与磁场产生部分(140)的两个边缘接触的圆柱形支撑部分(143),还具有比磁场产生部分(140)更小的直径 ),并且其安装在作为圆柱形支撑部件(143)的轴线的共同轴线上,并且安装在圆柱形磁场产生部件(140)的正面上的凹陷部分(140c)延伸在 磁场产生部分(140)的轴线的方向,并且其中插入纵向磁体形成。 圆柱形磁场产生部分(140)由安装在圆柱形磁场产生部分(140)的中心部分上的主体部分(140a)和加强部分(140b)构成,该加强部分安装在 其中,所述凹部(140c)整体安装在所述磁场产生部(140)的主体部(140a)上,所述加强部(140b)安装在所述凹部(140c)的端部 140c)和支撑部分的端部。

    DEVELOP UNIT, PROCESS CARTRIDGE, AND IMAGE FORMATION APPARATUS
    10.
    发明申请
    DEVELOP UNIT, PROCESS CARTRIDGE, AND IMAGE FORMATION APPARATUS 审中-公开
    开发单元,过程盒和图像形成装置

    公开(公告)号:US20090154961A1

    公开(公告)日:2009-06-18

    申请号:US12329826

    申请日:2008-12-08

    IPC分类号: G03G15/09

    CPC分类号: G03G15/0921

    摘要: A develop unit is configured to include a developer roller having a developer sleeve and a magnetic roller with a magnetic pole, a supply path formed in parallel with an axial direction of the developer roller, a supply screw supplying the developer to the developer roller, and a first bulkhead forming the supply path. In the developer unit, the magnetic pole is disposed so that a normal line through a maximum magnetic flux density point in a circumferential direction coincides with a tangent line to an upper portion of the supply screw in a rotary direction, the maximum magnetic flux density point being a point at which a density of a magnetic flux from the magnetic pole is maximum on an outer surface of the developer sleeve.

    摘要翻译: 显影单元被构造成包括具有显影剂套筒的显影辊和具有磁极的磁性辊,与显影辊的轴向平行形成的供给路径,向显影辊供给显影剂的供给螺杆,以及 形成供应路径的第一隔板。 在显影单元中,设置磁极,使得通过圆周方向上的最大磁通密度点的法线与沿着旋转方向的供给螺杆的上部的切线一致,最大磁通密度点 是在显影剂套筒的外表面上来自磁极的磁通量的密度最大的点。