ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD FOR MANUFACTURING THE SAME, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS USING THE SAME
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United States of America Patent
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Issued Date -
May 16, 2024
app pub date -
Sep 27, 2023
filing date -
Oct 21, 2022
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Abstract
An electrophotographic photoreceptor includes a photosensitive layer on a support, wherein the photosensitive layer includes at least a charge generating layer, a charge transporting layer, and a protective layer, the charge generating layer contains titanyl phthalocyanine or a derivative thereof, the charge transporting layer contains a charge transporting material, the protective layer contains a reactant of a polymerizable monomer having a charge transporting structure and a polymerizable monomer having no charge transporting structure, and the charge transporting material, and a ratio of the mass of the charge transporting material contained in the protective layer is greater than 3% by mass and less than 9% by mass with respect to the total mass of a reactant of the polymerizable monomer having the charge transporting structure and the polymerizable monomer having no charge transporting structure, and the charge transporting material.
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