Invention Grant
- Patent Title: Charging member for electrophotographic equipment
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Application No.: US16676401Application Date: 2019-11-06
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Publication No.: US10859938B2Publication Date: 2020-12-08
- Inventor: Yoshihiro Saito , Takeru Horiuchi , Shinkichi Kashihara
- Applicant: Sumitomo Riko Company Limited
- Applicant Address: JP Aichi
- Assignee: Sumitomo Riko Company Limited
- Current Assignee: Sumitomo Riko Company Limited
- Current Assignee Address: JP Aichi
- Agency: JCIPRNET
- Priority: JP2017-127155 20170629
- Main IPC: G03G15/02
- IPC: G03G15/02 ; G03G15/20

Abstract:
The present disclosure provides a charging member for electrophotographic equipment capable of providing constant and excellent uniform chargeability over a long period of time from low-temperature and low-humidity through high-temperature and high-humidity environments, while suppressing bleeding. A charging member for electrophotographic equipment includes an elastic layer and a surface layer formed around the elastic layer. The elastic layer includes the following (a) through (c): (a) an ion conducting agent that is solid at room temperature; (b) an ion conducting agent that is liquid at room temperature; and (c) an electron conducting agent with an average grain diameter of 25 to 90 nm and a DBP absorption of 152 ml/100 g or below.
Public/Granted literature
- US20200073273A1 CHARGING MEMBER FOR ELECTROPHOTOGRAPHIC EQUIPMENT Public/Granted day:2020-03-05
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