Invention Grant
- Patent Title: Charging member, process cartridge, and electrophotographic image forming apparatus
-
Application No.: US16149558Application Date: 2018-10-02
-
Publication No.: US10585370B2Publication Date: 2020-03-10
- Inventor: Noboru Miyagawa , Hidekazu Matsuda
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JP2012-285241 20121227
- Main IPC: G03G15/02
- IPC: G03G15/02 ; G03G21/18 ; C08K5/053 ; C08K5/132

Abstract:
In order to maintain the image quality of a recent high-speed electrophotographic apparatus, a charging member is provided which hardly causes charging unevenness of a photosensitive member even when vibration of the photosensitive member occurs. The charging member includes an electro-conductive support, an electro-conductive elastic layer, and a surface layer. The elastic layer contains a resin having an epichlorohydrin chain in the molecular structure and a specific flavonoid compound having two or more hydroxyl groups in the molecular structure.
Public/Granted literature
- US20190033746A1 CHARGING MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS Public/Granted day:2019-01-31
Information query