Invention Grant
- Patent Title: Developing member and electrophotographic image forming apparatus
- Patent Title (中): 显影元件和电子照相成像设备
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Application No.: US11850853Application Date: 2007-09-06
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Publication No.: US07799398B2Publication Date: 2010-09-21
- Inventor: Minoru Nakamura , Arihiro Yamamoto , Masaki Yamada , Masahiro Kurachi
- Applicant: Minoru Nakamura , Arihiro Yamamoto , Masaki Yamada , Masahiro Kurachi
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2006-269657 20060929; JP2007-199230 20070731
- Main IPC: B29D22/00
- IPC: B29D22/00

Abstract:
A developing member is provided which is capable of forming a high-quality image by simultaneously solving the problem of fogging in a high temperature and high humidity environment and the problem of ghosts in a low temperature and low humidity environment. The developing member includes a mandrel and a resin layer formed on the periphery of the mandrel, and has an outermost surface layer containing a non-reactive silicone compound. The non-reactive silicone compound satisfies the following requirements: (A) a copolymer of silicone and polyoxyethylene; (B) a specific gravity (25° C.) d of 0.99≦d≦1.03; and (C) a solubility in water (25° C.) of less than 0.1% by mass.
Public/Granted literature
- US20080081277A1 DEVELOPING MEMBER AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS Public/Granted day:2008-04-03
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