ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

WIPO Patent Application WO/2023/008019

A1

In the present invention, a first photosensitive layer of an electrophotographic photoreceptor is provided on the side, of a photosensitive layer constituted of at least one layer, furthest toward the front surface. The first photosensitive layer contains a charge-generating agent, a binder resin, an electron transport agent, and a hole transport agent. The binder resin includes a polyarylate resin having repeating units (1), (2), (3), and (4). The content percentage of the repeating unit (3) in relation to the sum of the repeating units (1) and (3) is greater than 0% but less than 50%. The content percentage of the repeating unit (4) in relation to the sum of the repeating units (2) and (4) is greater than or equal to 35% but less than 70%. The electron transport agent includes a compound represented by formula (10), (11), or (12). The hole transport agent includes a compound represented by formula (21) and (22).

WO/2012/074082	ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC APPARATUS, AND METHOD OF MANUFACTURING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER
JPH0922140	IMAGE FORMING METHOD
JPH01261648	ELECTROPHOTOGRAPHIC SENSITIVE BODY

OTSUBO JUNICHIRO (JP)
TAKANO KATSUYA (JP)
EZURE KAZUAKI (JP)

PCT/JP2022/025328

February 02, 2023

June 24, 2022

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KYOCERA DOCUMENT SOLUTIONS INC (JP)

G03G5/05; G03G5/06; G03G5/147; G03G21/16

JP2017125880A	2017-07-20
JP2017194624A	2017-10-26
JP2005242224A	2005-09-08
JP2020118705A	2020-08-06
JPH1020514A	1998-01-23

MAEI Hiroyuki (JP)

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