Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Photoreceptor, image forming method and image forming apparatus using the photoreceptor, process cartridge using the photoreceptor and coating liquid for the photoreceptor
A photoreceptor including an electroconductive substrate; a photosensitive layer; and optionally a protective layer, wherein an outermost layer thereof includes a filler, an organic compound having an acid value of from 10 to 700 mg KOH/g and at least one compound selected from the group consisting of compounds having the following formulae (1) and (2):wherein R1 (R3) and R2 (R4) independently represent a substituted or an unsubstituted aromatic hydrocarbon group, or a substituted or an unsubstituted alkyl group, and optionally share bond connectivity to form a heterocyclic group including a nitrogen atom; Ar1 (Ar3) and Ar2 (Ar4) independently represent a substituted or a unsubstituted aromatic ring group; k (K) and m (M) independently represent 0 or an integer of from 1 to 3, wherein k (K) and m (M) are not 0 at the same time; and n (n′) represents an integer of from 1 to 3.
Ricoh Company, Ltd.
G G G G G G G G G
G03G G03G G03G G03G G03G G03G G03G G03G G03G
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Tomoyuki Takaaki Nozomu Hidetoshi Yuuji Yasuo
Shimada Ikegami Tamoto Kami Takana Suzuki