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51. 发明授权

US06898399B2 Electrophotographic photosensitive drum process cartridge and electrophotographic image forming apparatus 失效
标题翻译：电子照相感光鼓处理盒和电子照相成像设备
公开(公告)号：US06898399B2
公开(公告)日：2005-05-24
申请号：US10417226
申请日：2003-04-17
申请人： Masanari Morioka , Minoru Sato , Takeshi Arimitsu
发明人： Masanari Morioka , Minoru Sato , Takeshi Arimitsu
IPC分类号： G03G21/00 , G03G15/00 , G03G21/18
CPC分类号： G03G21/1825 , G03G21/186 , G03G2221/1884
摘要： An electrophotographic photosensitive drum is for a process cartridge detachably mountable to a main assembly of an electrophotographic image-forming apparatus. The process cartridge includes a charging roller for electrically charging the photosensitive drum and a developing roller for developing a latent image formed on the drum. The drum includes a drum helical gear, mounted to one end of the cylinder, for transmitting a rotational driving force to a transfer roller provided in a main assembly, and for transmiting a rotational driving force to the charging roller and the developing roller. A shaft portion is provided at a central portion of the drum helical gear at a position where it is completely overlapped with teeth of the drum helical gear with respect to a longitudinal direction of the cylinder. A gap is provided between the teeth and a peripheral surface of the shaft portion.
摘要翻译：电子照相感光鼓用于可拆卸地安装到电子照相成像设备的主组件上的处理盒。处理盒包括用于使感光鼓充电的充电辊和用于显影形成在感光鼓上的潜像的显影辊。滚筒包括安装在滚筒一端的滚筒螺旋齿轮，用于将旋转驱动力传递到设置在主组件中的转印辊，并将旋转驱动力传递到充电辊和显影辊。在滚筒斜齿轮的中心部分处设置有一个轴部分，该位置与滚筒螺旋齿轮的齿相对于气缸的纵向方向完全重叠。在齿与轴部的周面之间设有间隙。

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