ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC DEVICE

WIPO Patent Application WO/2024/085117

A1

In order to address the problem of providing an electrophotographic photoreceptor in which the durability is improved by suppressing desorption of particles from a surface layer, while the transfer property is improved by controlling the distance between the particles of the surface layer and reducing an adhesion force of a toner, the following electrophotographic photoreceptor is provided. That is, an electrophotographic photoreceptor according to the present invention is characterized in that: when a projection which is derived from a particle PAA and which has a height within a range of 10-300 nm is defined as a projection CA, the projections CA are located on the surface of the surface layer; when the surface layer is viewed from the top, the average value of the distance between the centers of gravity of the projections CA is 150-500 nm, and the standard deviation of the distance between the centers of gravity of the projections CA is 250 nm or less; and when the surface layer is viewed from the top and when S1 represents an area occupied by the particles in the surface of the surface layer and S2 represents an area not occupied by the particles, S1/(S1+S2) is 0.70-1.00.

WATANABE SHUNTARO (JP)
SATO TAICHI (JP)
HIGUCHI NAO (JP)
TANAKA KENTARO (JP)
HIROTA MASATADA (JP)
ISHIDA TOMOHITO (JP)
NISHIDA TSUTOMU (JP)

PCT/JP2023/037414

April 25, 2024

October 16, 2023

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CANON KK (JP)

G03G5/147

OKABE Yuzuru et al. (JP)

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