Invention Grant
- Patent Title: Charging member, process cartridge and electrophotographic apparatus
- Patent Title (中): 充电部件,处理盒和电子照相设备
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Application No.: US11574110Application Date: 2005-09-01
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Publication No.: US07962068B2Publication Date: 2011-06-14
- Inventor: Noriaki Kuroda , Hisao Kato , Toshinari Miura , Toshiro Suzuki , Takumi Furukawa , Michitaka Kitahara , Jun Murata , Yukinori Nagata , Masaki Ozawa , Kazuyuki Shishitsuka , Yoko Kuruma
- Applicant: Noriaki Kuroda , Hisao Kato , Toshinari Miura , Toshiro Suzuki , Takumi Furukawa , Michitaka Kitahara , Jun Murata , Yukinori Nagata , Masaki Ozawa , Kazuyuki Shishitsuka , Yoko Kuruma
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2004-255692 20040902; JP2004-379828 20041228; JP2005-149452 20050523; JP2005-248687 20050830
- International Application: PCT/JP2005/016460 WO 20050901
- International Announcement: WO2006/025597 WO 20060309
- Main IPC: G03G21/00
- IPC: G03G21/00

Abstract:
An object of the present invention is to provide a charging member in which a toner, an additive for use in the toner, or the like is hard to adhere to the surface even under repeated use for a long time, and hence the charging and image output are made stable for a long time even if the charging member is used in the DC contact charging method, and a process cartridge and an electrophotographic apparatus having the charging member. The present invention provides a charging member comprising a support, a conductive elastic layer formed on the support, and a surface layer formed on the conductive elastic layer, characterized in that the surface layer contains a polysiloxane having a fluoroalkyl group and an oxyalkylene group, and a process cartridge and an electrophotographic apparatus having the charging member.
Public/Granted literature
- US20070217823A1 CHARGING MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS Public/Granted day:2007-09-20
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