发明名称 ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE FOR ELECTROPHOTOGRAPHIC APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor, an image forming apparatus and a process cartridge for an electrophotographic apparatus having a long service life and capable of stably supplying an image of high quality. SOLUTION: The surface layer of the electrophotographic photoreceptor contains polycarbonate resin and filler. The polycarbonate resin contains a structural unit expressed by formula (1) and specified two structural units, has≥70,000 weight average molecular weight in terms of polystyrene and has the molar ratio of the structural unit expressed by formula (1) with respect to the molar sum of all structural units being larger than 0.1 and less than 0.7. In formula (1), each of R<SB>1</SB>and R<SB>2</SB>represents an acyl group, an alkyl group or an aryl group; and each of Ar<SB>1</SB>, Ar<SB>2</SB>and Ar<SB>3</SB>represents an arylene group. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2005099220(A) 申请公布日期 2005.04.14
申请号 JP20030330771 申请日期 2003.09.22
申请人 RICOH CO LTD 发明人 TAMOTO NOZOMI;SUZUKI YASUO;NAGAI KAZUKIYO;SHIMADA TOMOYUKI;IKEGAMI TAKAAKI
分类号 G03G5/147;G03G5/06;G03G5/07;G03G21/00;(IPC1-7):G03G5/147 主分类号 G03G5/147
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