Invention Grant
- Patent Title: Electrophotographic photosensitive member, process cartridge, and image forming apparatus
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Application No.: US15948825Application Date: 2018-04-09
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Publication No.: US10359713B2Publication Date: 2019-07-23
- Inventor: Tomofumi Shimizu , Jun Azuma
- Applicant: KYOCERA Document Solutions Inc.
- Applicant Address: JP Osaka
- Assignee: KYOCERA Document Solutions Inc.
- Current Assignee: KYOCERA Document Solutions Inc.
- Current Assignee Address: JP Osaka
- Agency: Studebaker & Brackett PC
- Priority: JP2017-078840 20170412
- Main IPC: G03G5/05
- IPC: G03G5/05 ; G03G5/06

Abstract:
An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer having a single-layer structure. The photosensitive layer contains a charge generating material, an electron transport material, and a binder resin. The electron transport material includes a compound having a halogen atom and represented by a general formula (1), (2), (3), (4), or (5). The binder resin includes a polyarylate resin. The polyarylate resin includes at least one type of repeating unit each represented by general formula (11), at least one type of repeating unit each represented by general formula (12), and a terminal group represented by general formula (13). In general formula (13), Rf represents a chain aliphatic group substituted by at least one fluoro group. A charge of calcium carbonate charged by friction between the photosensitive layer and the calcium carbonate is at least +8.0 μC/g.
Public/Granted literature
- US20180299797A1 ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS Public/Granted day:2018-10-18
Information query
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