Electrophotographic photoreceptor, process cartridge, and image forming apparatus
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United States of America Patent
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Oct 15, 2024
Grant Date -
Oct 3, 2024
app pub date -
Jul 24, 2023
filing date -
Mar 28, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
An electrophotographic photoreceptor includes a conductive base body and a multilayered photosensitive layer disposed on the conductive base body and including a charge generation layer and a charge transport layer, wherein the charge transport layer is an uppermost surface layer and contains a charge transport material, a polyester resin, and a compound (T) represented by Formula (T) below, the polyester resin includes a polyester resin (1) including at least one selected from the group consisting of a diol unit (P1) represented by Formula (P1), a diol unit (P2) represented by Formula (P2), a diol unit (P3) represented by Formula (P3), a diol unit (P5) represented by Formula (P5), and a diol unit (P6) represented by Formula (P6), the polyester resin (1) further includes a unit including a biphenyl skeleton, and end groups of the polyester resin (1) do not include fluorine atoms.
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