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    • 7. 发明授权
    • Charging device
    • 充电装置
    • US07248821B2
    • 2007-07-24
    • US11143218
    • 2005-06-02
    • Ryo NakamuraHiroyuki Suzuki
    • Ryo NakamuraHiroyuki Suzuki
    • G03G15/02
    • G03G15/0241G03G2215/021
    • A charging device includes magnetic particles, a magnetic particle carrying member that magnetically carries the magnetic particles into contact with a member to be charged, and a magnetic particle adjusting unit for adjusting an amount per unit area of magnetic particles carried on the magnetic particle carrying member so that the amount per unit area of magnetic particles carried is larger in end regions of the magnetic particle carrying member in the longitudinal direction than in a central region of the magnetic particle carrying member in the longitudinal direction.
    • 充电装置包括磁性颗粒,将磁性颗粒与被充电元件接触的磁性颗粒承载构件,和用于调节载置在磁性颗粒载体上的磁性颗粒的每单位面积的量的磁性颗粒调节单元 使得磁性粒子承载构件的纵向方向的端部区域中的磁性粒子的单位面积的量比在磁性粒子承载构件的长度方向的中心区域大。
    • 8. 发明申请
    • Image forming apparatus
    • 图像形成装置
    • US20060245774A1
    • 2006-11-02
    • US11409084
    • 2006-04-24
    • Ryo Nakamura
    • Ryo Nakamura
    • G03G15/02
    • G03G15/0266G03G15/5037G03G2215/022
    • An image forming apparatus includes an image bearing member; a plurality of chargers for injection charging of the image bearing member; a latent image forming device, disposed downstream of the plurality of charging members with respect to a moving direction of a peripheral surface of the image bearing member, for forming a latent image on the image bearing member having been charged by the plurality of charging members; a potential detecting device for detecting a surface potential of the image bearing member after passing by the plurality of charging members, wherein the plurality of chargers include a first charger and a second charger disposed at a most downstream position with respect to the moving direction, and wherein the image forming apparatus is operable in a control mode in which a bias voltage applied to the first charger is changed with a bias voltage applied to the second charger unchanged.
    • 图像形成装置包括:图像承载部件; 用于图像承载部件的注射充电的多个充电器; 相对于所述图像承载部件的周面的移动方向设置在所述多个充电部件的下游的潜像形成装置,用于在所述图像承载部件上形成由所述多个充电部件充电的潜像; 用于在通过所述多个充电部件之后检测所述图像承载部件的表面电位的潜在检测装置,其中所述多个充电器包括相对于所述移动方向设置在最下游位置处的第一充电器和第二充电器,以及 其中所述图像形成装置在其中施加到所述第一充电器的偏置电压以施加到所述第二充电器的偏置电压不变的方式改变的控制模式下操作。