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    • 8. 发明申请
    • ELECTROCONDUCTIVE ROLL, CHARGING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
    • 电动滚筒,充电装置,工艺盒和图像形成装置
    • US20110002711A1
    • 2011-01-06
    • US12695637
    • 2010-01-28
    • Noboru WADA
    • Noboru WADA
    • G03G15/02G03G15/16
    • G03G15/0233G03G2215/1614
    • The invention provides an electroconductive roll having at least a surface layer forming an outer peripheral surface of the electroconductive roll. The surface layer contains projections and recesses. The projections contain a plurality of particles. A ratio of an area occupied by particles existing in a cross-section of a projection to an entire area of the cross-section of the projection is larger than a ratio of an area occupied by particles existing in a cross-section of a recess to an entire area of the cross-section of the recess. The invention further provides a process cartridge having a charging roll which is the electroconductive roll and/or a transfer roll which is the electroconductive roll. The invention further provides an image forming apparatus having a charging unit containing the electroconductive roll and/or a transfer unit containing the electroconductive roll.
    • 本发明提供一种导电辊,其至少具有形成导电辊外周表面的表面层。 表面层包含凸起和凹槽。 突起包含多个颗粒。 存在于突起的横截面中的颗粒所占的面积与突起的横截面的整个区域的比例大于存在于凹部的横截面中的颗粒占据的面积的比率 凹槽横截面的整个区域。 本发明还提供一种处理盒,其具有作为导电辊的导电辊和/或转印辊的充电辊。 本发明还提供一种图像形成装置,其具有包含导电辊的充电单元和/或包含导电辊的转印单元。