发明授权
- 专利标题： Charging roller, electrophotographic process cartridge, and image forming apparatus
- 专利标题（中）： 充电辊，电子照相处理盒和成像设备
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申请号： US11798745申请日： 2007-05-16
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公开(公告)号： US07580655B2公开(公告)日： 2009-08-25
- 发明人: Hidemi Nukada , Shigeto Hashiba , Takahiro Suzuki , Koji Bando , Makoto Takemoto
- 申请人： Hidemi Nukada , Shigeto Hashiba , Takahiro Suzuki , Koji Bando , Makoto Takemoto
- 申请人地址： JP Tokyo
- 专利权人： Fuji Xerox Co., Ltd.
- 当前专利权人： Fuji Xerox Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oliff & Berridge, PLC
- 优先权： JP2006-298981 20061102
- 主分类号： G03G15/02
- IPC分类号： G03G15/02
摘要：
A charging roller including: a support; an elastic layer provided on the outer peripheral surface of the support, and having a ground-finished outer peripheral surface; and a surface layer formed to cover the outer peripheral surface of the elastic layer and that has a thickness of about 2 μm to about 10 μm from the outer peripheral surface of the elastic layer, and a proportion of water absorbed in the total of the elastic layer and the surface layer, after storage for 48 hours in an environment having a temperature of 10° C. and a humidity of 15% RH, and after storage for 48 hours in an environment having a temperature of 28° C. and a humidity of 85% RH, being about 2% to about 8% by weight, being about 2% to about 8% by weight.
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