Invention Grant
- Patent Title: Electrophotographic image forming apparatus containing organic photoreceptor, unit for supplying lubricant, and cleaning blade
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Application No.: US15255411Application Date: 2016-09-02
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Publication No.: US09910398B2Publication Date: 2018-03-06
- Inventor: Keiichi Inagaki , Seijiro Takahashi , Hiroshi Nakahara , Hiroshige Kidera
- Applicant: Konica Minolta, Inc.
- Applicant Address: JP Tokyo
- Assignee: KONICA MINOLTA, INC.
- Current Assignee: KONICA MINOLTA, INC.
- Current Assignee Address: JP Tokyo
- Agency: Lucas & Mercanti, LLP
- Priority: JP2015-184645 20150918
- Main IPC: G03G21/00
- IPC: G03G21/00 ; G03G5/05

Abstract:
An electrophotographic image forming apparatus using an organic photoreceptor in which at least a charge generation layer, a charge transport layer, and a protective layer are laminated in order on a conductive support includes at least a unit for supplying a lubricant onto a surface of the organic photoreceptor and a unit for removing toner remaining on the surface of the organic photoreceptor with a cleaning blade, and satisfying the following conditions (1) to (3): (1) the protective layer of the organic photoreceptor contains at least metal oxide fine particles in a cured resin obtained by curing a polymerizable compound; (2) a universal hardness of the surface of the organic photoreceptor is in a range of 220 to 280 N/mm2; and (3) a JIS-A hardness of a portion of the cleaning blade to be abutted on the organic photoreceptor is in a range of 70 to 78°.
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