ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
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United States of America
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Issued Date -
Dec 12, 2024
app pub date -
Feb 7, 2024
filing date -
Feb 7, 2024
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Abstract
An electrophotographic photoreceptor includes a conductive substrate, an undercoat layer disposed on the conductive substrate, and a photosensitive layer disposed on the undercoat layer, in which the undercoat layer contains a binder resin and at least one perinone compound selected from the group consisting of a compound represented by Formula (1) and a compound represented by Formula (2), the photosensitive layer contains a polyester resin (1) having at least one dicarboxylic acid unit (A) selected from the group consisting of a dicarboxylic acid unit (A2) represented by Formula (A2), a dicarboxylic acid unit (A3) represented by Formula (A3), and a dicarboxylic acid unit (A4) represented by Formula (A4), and a diol unit (B) represented by Formula (B), and a mass proportion of the polyester resin (1) in the photosensitive layer is 15% by mass or greater,
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