Electrophotographic photosensitive member, process cartridge, and image forming apparatus

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United States of America Patent

PATENT NO 11796928
APP PUB NO 20220308473A1
SERIAL NO

17396061

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Abstract

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An electrophotographic photosensitive member includes a conductive support and a photosensitive layer disposed on the conductive support. A top surface layer of the electrophotographic photosensitive member includes fluorine-containing resin particles, a fluorine-containing dispersant, and two or more charge transporting materials. When the charge transporting materials are listed in order of decreasing HOMO energy levels, a difference in HOMO energy level between each adjacent two of the charge The ratio A of the amount of each of the charge transporting materials to the total amount of the charge transporting materials satisfies the condition 1 below,

description='In-line Formulae' end='lead'[(100/N)−(100/N×0.3)]≤A≤[(100/N)+(100/N×0.3)]  Condition 1description='In-line Formulae' end='tail'

    where N represents the number of types of the charge transporting materials included in the top surface layer.

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Patent Owner(s)

Patent OwnerAddress
FUJIFILM BUSINESS INNOVATION CORPTOKYO 107-0052

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hashimoto, Kohei Kanagawa, JP 26 35
Iwanaga, Takeshi Kanagawa, JP 116 1385
Kawasaki, Akihiro Kanagawa, JP 31 263
Kusano, Keisuke Kanagawa, JP 30 20
Okazaki, Yuto Kanagawa, JP 28 9
Shingu, Kenta Kanagawa, JP 19 5
Yamada, Wataru Kanagawa, JP 184 928
Yamada, Yoshiteru Kanagawa, JP 16 38
Yoneyama, Hirohito Kanagawa, JP 48 242

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