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23 条记录 (耗时 0.022 秒)

    Development roller, development device, process cartridge and image-forming apparatus
    3.
    发明公开
    Development roller, development device, process cartridge and image-forming apparatus 有权
    Entwicklungsvorze，Entwicklungsvorrichtung，Prozesskartusche und Bilderzeugungsvorrichtung

    公开(公告)号：EP2525262A1

    公开(公告)日：2012-11-21

    申请号：EP12168571.3

    申请日：2012-05-18

    申请人： Ricoh Company Ltd.

    发明人： Terasaka, Takumi ,  Kojima, Toshio ,  Koetsuka, Kyohta ,  Kamiya, Noriyuki ,  Ohsawa, Masayuki ,  Abe, Hiroya

    IPC分类号： G03G15/08 ,  G03G15/09

    CPC分类号： G03G15/0921 ,  G03G15/0818

    摘要： A development roller includes a magnet roller and a rotatably supported development sleeve including inside thereof the magnet roller, the development sleeve is formed in a cylindrical shape and configured such that a shaft center of the cylindrical shape is inconsistent with a rotation axis of the development sleeve, the development sleeve includes an outer surface provided with many circular or elliptical depressions in a planar view, the depressions being regularly arranged at intervals, and a depth of the depression provided in a portion of the outer surface close to the rotation axis is larger than a depth of the depression provided in a portion of the outer surface far from the rotation axis.

    摘要翻译： 显影辊包括磁辊和可旋转支撑的显影套筒，其包括磁辊，显影套筒形成为圆柱形，并且构造成使得圆筒形状的轴心与显影套筒的旋转轴线不一致 显影套筒包括在平面图中设置有许多圆形或椭圆形凹陷的外表面，凹部被间隔规则地布置，并且设置在靠近旋转轴线的外表面的一部分中的凹陷的深度大于 所述凹陷的深度设置在远离所述旋转轴线的所述外表面的一部分中。

    Develop roller, develop unit, process cartridge and image forming apparatus
    6.
    发明公开
    Develop roller, develop unit, process cartridge and image forming apparatus 审中-公开
    Entwicklungswalze，Entwicklungseinheit，Prozesskartusche und Bilderzeugungsvorrichtung

    公开(公告)号：EP2385430A1

    公开(公告)日：2011-11-09

    申请号：EP11250490.7

    申请日：2011-04-20

    申请人： Ricoh Company, Ltd.

    发明人： Ohsawa, Masayuki ,  Kojima, Toshio ,  Koetsuka, Kyohta ,  Takano, Yoshiyuki ,  Kamiya, Noriyuki ,  Innami, Takashi ,  Terasaka, Takumi

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0818 ,  G03G2215/0634

    摘要： A develop roller (115) includes a magnet roller (133), and a develop sleeve (132) containing the magnet roller (133) and comprising a plurality of depressions (139) in an elliptic shape regularly arranged with an interval in a longitudinal direction on a surface onto which developer (126) is attracted by a magnetic force of the magnet roller (133), in which the depressions (139) are arranged such that a longitudinal direction of the depressions (139) is intersected with the longitudinal direction of the develop sleeve (132), and a downstream side of the depressions (139) are formed to be deeper than an upstream side in a rotary direction of the develop sleeve (132).

    摘要翻译： 显影辊（115）包括磁性辊（133）和包含磁性辊（133）的显影套筒（132），并且包括多个沿纵向间隔规则地布置的椭圆形凹部（139） 在所述显影剂（126）被所述磁性辊（133）的磁力吸引到的表面上，所述凹部（139）布置成使得所述凹部（139）的纵向方向与所述凹部 显影套筒（132）和凹部（139）的下游侧形成为比显影套筒（132）的旋转方向上游侧更深。

    Develop unit, process cartridge, and image formation apparatus
    9.
    发明公开
    Develop unit, process cartridge, and image formation apparatus 有权
    Entwicklungseinheit，Prozesskartusche und Bilderzeugungsvorrichtung

    公开(公告)号：EP2071413A1

    公开(公告)日：2009-06-17

    申请号：EP08170649.1

    申请日：2008-12-04

    申请人： Ricoh Company, Ltd.

    发明人： Kamiya, Noriyuki ,  Koetsuka, Kyohta ,  Takano, Yoshiyuki ,  Hattori, Tadaaki ,  Kakegawa, Mieko ,  Ohsawa, Masayuki ,  Suzuki, Rei ,  Abe, Hiroya ,  Innami, Takashi

    IPC分类号： G03G15/09

    CPC分类号： G03G15/0921

    摘要： A develop unit (4) is configured to include a developer roller (5) having a developer sleeve (5c) and a magnetic roller (5b) with a magnetic pole (13), a supply path (9) formed in parallel with an axial direction of the developer roller (5), a supply screw (8) supplying the developer to the developer roller (5), and a first bulkhead (133) forming the supply path (9). In the developer unit (4), the magnetic pole (13) is disposed so that a normal line (K) through a maximum magnetic flux density point (P) in a circumferential direction coincides with a tangent line to an upper portion of the supply screw (8) in a rotary direction, the maximum magnetic flux density point (P) 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 (5c).

    摘要翻译： 显影单元（4）被构造成包括具有显影剂套筒（5c）的显影辊（5）和具有磁极（13）的磁性辊（5b），与轴向平行形成的供应路径（9） 显影辊（5）的方向，将显影剂供给到显影辊（5）的供给螺杆（8）和形成供给路径（9）的第一隔板（133）。 在显影剂单元（4）中，设置磁极（13），使得通过周向上的最大磁通密度点（P）的法线（K）与供给的上部的切线一致 旋转方向上的螺杆（8），最大磁通密度点（P）是显影套筒（5c）的外表面上来自磁极的磁通密度最大的点。