Title:
PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC DEVICE
Document Type and Number:
Japanese Patent JP2023134227
Kind Code:
A
Abstract:
To provide a process cartridge that can prevent the generation of a banding image and form a high-quality electrophotographic image.SOLUTION: A process cartridge is provided which has an electrophotographic photoreceptor, toner, and a developing member that supplies the toner to the electrophotographic photoreceptor. The electrophotographic photoreceptor has a surface layer containing particles A including metal atoms and a binder resin. The toner has toner particles and hydrotalcite particles as an external additive. In filter fitting analysis in STEM-EDS analysis, the hydrotalcite particles contain fluorine. When the number average primary particle diameter of the particles A is defined as m [nm], the content ratio of the particles A to the surface layer as p [volume%], and the number average primary particle diameter of the hydrotalcite particles as h [nm], the m, the p, and the h satisfy the following formulas, respectively. The process cartridge is removably attached to a main body of an electrophotographic device. Formula (1) 5≤m≤300; formula (2) 5≤p≤40; formula (3) 60≤h≤1000.SELECTED DRAWING: Figure 2
Inventors:
NAKAZONO TOMOHARU
TOGUCHI KANAME
SHIMOZAWA HIDEHARU
NISHIDA TAKESHI
OKUDA ATSUSHI
GYE DAE SI
KIKUCHI YUICHI
TOGUCHI KANAME
SHIMOZAWA HIDEHARU
NISHIDA TAKESHI
OKUDA ATSUSHI
GYE DAE SI
KIKUCHI YUICHI
Application Number:
JP2022039630A
Publication Date:
September 27, 2023
Filing Date:
March 14, 2022
Export Citation:
Assignee:
CANON KK
International Classes:
G03G5/147; G03G9/097; G03G15/02; G03G21/18
Attorney, Agent or Firm:
Okabe
Takao Ochi
Koji Yoshizawa
Aki Honda
Takao Ochi
Koji Yoshizawa
Aki Honda