Electrophotographic photosensitive member, process cartridge, and image forming apparatus
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United States of America Patent
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May 11, 2021
Grant Date -
Jul 23, 2020
app pub date -
Jan 10, 2020
filing date -
Jan 18, 2019
priority date (Note) -
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Abstract
An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer. The photosensitive layer is a single layer. The photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. The hole transport material includes a compound represented by chemical formula (1-1) or (1-2). The photosensitive layer further contains an n-type pigment. The n-type pigment is preferably an azo pigment or a perylene pigment.
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