Development magnet roller, development device, process cartridge and image forming apparatus
    1.
    发明授权
    Development magnet roller, development device, process cartridge and image forming apparatus 有权
    开发磁辊,显影装置,处理盒和成像装置

    公开(公告)号:US07352983B2

    公开(公告)日:2008-04-01

    申请号:US10911582

    申请日:2004-08-05

    IPC分类号: G03G15/09

    CPC分类号: G03G15/0921 G03G2215/0634

    摘要: A development magnet roller for use in a development roller of an electrophotographic image forming apparatus is provided. The development magnet roller has a development pole to form a magnetic field causing a developer born on a surface of the development roller including the development magnet roller to rise in a form of a series of ears in a development area of the image forming apparatus where the development roller opposes an image bearing member, and in a magnetic flux density distribution in a normal line direction of the development pole, a peak magnetic flux density is 120 mT or greater, a zero gauss region width is 70° or greater, and a half-value region width is 40° or smaller.

    摘要翻译: 提供一种用于电子照相成像设备的显影辊中的显影磁辊。 显影磁辊具有显影极以形成磁场,使得显影辊的显影辊的表面上出现的显影剂的显影磁极在图像形成装置的显影区域中以一系列的耳朵的形式上升, 显影辊与图像承载部件相对,并且在显影极的法线方向上的磁通密度分布中,峰值磁通密度为120mT以上,零高斯区域宽度为70°以上,半高 值区域宽度为40°以下。

    Development magnet roller, development device, process cartridge and image forming apparatus
    2.
    发明申请
    Development magnet roller, development device, process cartridge and image forming apparatus 有权
    开发磁辊,显影装置,处理盒和成像装置

    公开(公告)号:US20050063738A1

    公开(公告)日:2005-03-24

    申请号:US10911582

    申请日:2004-08-05

    IPC分类号: G03G15/09 H01F7/02

    CPC分类号: G03G15/0921 G03G2215/0634

    摘要: A development magnet roller for use in a development roller of an electrophotographic image forming apparatus is provided. The development magnet roller has a development pole to form a magnetic field causing a developer born on a surface of the development roller including the development magnet roller to rise in a form of a series of ears in a development area of the image forming apparatus where the development roller opposes an image bearing member, and in a magnetic flux density distribution in a normal line direction of the development pole, a peak magnetic flux density is 120 mT or greater, a zero gauss region width is 70° or greater, and a half-value region width is 40° or smaller.

    摘要翻译: 提供一种用于电子照相成像设备的显影辊中的显影磁辊。 显影磁辊具有显影极以形成磁场,使得显影辊的显影辊的表面上出现的显影剂的显影磁极在图像形成装置的显影区域中以一系列的耳朵的形式上升, 显影辊与图像承载部件相对,并且在显影极的法线方向上的磁通密度分布中,峰值磁通密度为120mT以上,零高斯区域宽度为70°以上,半高 值区域宽度为40°以下。