Rabin & Berdo, P.C.
Electrophotographic photoreceptor, method for manufacturing same, and electrophotographic apparatus using same
An electrophotographic photoreceptor of a negatively-chargeable laminate-type includes a conductive substrate; a charge generation layer provided on the conductive substrate and including a charge generating material; and a charge transport layer provided on the charge generation layer and containing, as a binder resin, a copolymerized polycarbonate resin having a repeating unit represented by Formula (1); as a hole transporting substance, a compound having a structure represented by Formula (2); as an electron transporting substance, a compound having a structure represented by Formula (3), and, as an antioxidant, a compound represented by Structural Formula (4), where a mass ratio H/(B+H) represents a ratio of mass (H) of the hole transporting substance with respect to a sum of mass (B) of the binder resin and the mass (H) of the hole transporting substance, and satisfies Formula (5), 0.20 by mass≤H/(B+H)≤0.35 by mass,
FUJI ELECTRIC CO., LTD.
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Fengqiang Masaru Hirotaka Toshiki
Zhu Takeuchi Kobayashi Obinata