Developer carrier, development device, process cartridge, and image forming apparatus
    1.
    发明公开
    Developer carrier, development device, process cartridge, and image forming apparatus 有权
    Entwicklerkartusche,Entwicklervorrichtung,Prozesskartusche und Bilderzeugungsvorrichtung

    公开(公告)号:EP2161626A1

    公开(公告)日:2010-03-10

    申请号:EP09169696.3

    申请日:2009-09-08

    申请人: Ricoh Co., Ltd.

    IPC分类号: G03G15/09

    CPC分类号: G03G15/0928

    摘要: A developer carrier (16) includes magnetic field generating means (25) provided with a plurality of magnetic poles including an agent separating pole (P4) and a scooping pole (P6), and a cylindrical hollow body (26) accommodating therein the magnetic field generating means (25) and rotated around an axis of the cylindrical hollow body. A half-value width of a magnetic flux density at both end portions of at least one magnetic pole of the agent separating pole (P4) and the scooping pole (P6) is formed to be identical to or narrower than a half-value width of the magnetic flux density at a central portion of the one magnetic pole.

    摘要翻译: 显影剂载体(16)包括设置有多个磁极的磁场产生装置(25),该多个磁极包括试剂分离极(P4)和汲取极(P6),以及圆柱形中空体(26),其中容纳有磁场 产生装置(25)并围绕圆柱形中空体的轴线旋转。 制剂分离极(P4)和汲取极(P6)的至少一个磁极的两端部的磁通密度的半值宽度形成为与半值宽度相同或更小 在一个磁极的中心部分处的磁通密度。