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1. 发明申请

WO2012081528A1 CHARGING MEMBER AND IMAGE FORMING APPARATUS 审中-公开
标题翻译：充电会员和图像形成装置
公开(公告)号：WO2012081528A1
公开(公告)日：2012-06-21
申请号：PCT/JP2011/078633
申请日：2011-12-05
申请人： CANON KABUSHIKI KAISHA , KISHI, Yosuke , KANAI, Ryosuke
发明人： KISHI, Yosuke , KANAI, Ryosuke
IPC分类号： G03G15/02
CPC分类号： G03G15/0233 , G03G15/025
摘要： A blade- like charging member (22) for charging a surface of an image bearing member by contacting thereto and by being supplied with a voltage, includes a charging portion (222) for effecting electric discharge to the surface of the image bearing member; a non-charging portion (221) not effecting the electric discharge to the surface of the image bearing member capable of contacting the image bearing member with maintaining an electrically dischargeable gap between the charging portion and the image bearing member, wherein at least a part of the non- charging portion is made of a material having a higher resistance than that of the charging portion so as to prevent electric discharge between the non-charging portion and the surface of the image bearing member, and the non -charging portion is contacted to and slidable on the surface of the image bearing member over a range not less than a longitudinal dimension of the charge portion (222), and wherein when the surface of the image bearing member is charged, a closest distance between a discharging position of a surface of the charge portion and an electrode portion (223) for applying a voltage to the charging member is longer in a longitudinal end portion (222c) of the charging member than in a longitudinally central portion.
摘要翻译：一种用于通过与图像承载部件的表面接触并通过被提供电压而对图像承载部件的表面进行充电的刀片状充电部件（22）包括用于对图像承载部件的表面进行放电的充电部分（222）非充电部分（221），其不会对能够与图像承载部件接触的图像承载部件的表面进行放电，同时保持充电部分和图像承载部件之间的可放电的间隙，其中至少部分非充电部分由具有比充电部分的电阻高的材料制成，以防止非充电部分和图像承载部件的表面之间的放电，并且使非充电部分与并且在图像承载部件的表面上在不小于充电部分（222）的纵向尺寸的范围上可滑动，并且其中当图像承载部件的表面被充电时，表面的排出位置之间的最近距离和用于向充电部件施加电压的电极部分（223）在充电部件的纵向端部（222c）中较长而不是纵向中心部分。

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