发明名称 |
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS |
摘要 |
An electrophotographic photosensitive drum is for a process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus. The main assembly includes a motor, and a gear having a non-circular twisted hole. The drum includes a cylinder having a non-circular twisted projection engageable with the hole to receive a driving force from the main assembly when the cartridge is mounted to the main assembly. A recess is formed in the projection and has a bottom portion and a side surface portion. When the projection receives a pulling force toward the hole by rotation of the gear with the projection and the hole being engaged with each other, the bottom portion contacts a spherical surface portion provided at a central portion of the hole, and the side surface portion contacts the spherical surface portion.
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申请公布号 |
US2007110478(A1) |
申请公布日期 |
2007.05.17 |
申请号 |
US20060616486 |
申请日期 |
2006.12.27 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
NUMAGAMI ATSUSHI;UENO TAKAHITO;HOASHI SHIGERU |
分类号 |
G03G15/00;G03G21/00;F16D1/112;G03G15/02;G03G21/18 |
主分类号 |
G03G15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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