Title:
プロセスカートリッジ及び電子写真装置
Document Type and Number:
Japanese Patent JP7337651
Kind Code:
B2
Abstract:
The process cartridge includes an electrophotographic photosensitive member having a first support and a photosensitive layer; and a charging member. In the photosensitive member when an electric current is measured which flows when a voltage is applied to a surface while being varied, a gradient a1 of a low electric field region and a gradient a2 of a high electric field region satisfy a2/a1≥1.50, in a graph. The charging member includes a second support having an electroconductive outer surface, and a second electroconductive layer including a matrix and a plurality of domains being dispersed in the matrix, at least a portion of the domain is exposed to an outer surface which includes at least the matrix and at least a portion of the domain, and a volume resistivity ρM of the matrix is 1.00×105 times or higher of a volume resistivity ρD of the domain.
Inventors:
Kaname Toguchi
Kohei Makikado
Fumiyuki Hiyama
Yuichi Kikuchi
Kazuhiro Yamauchi
Hirotaka Araki
Seiichi Miyazawa
Kohei Makikado
Fumiyuki Hiyama
Yuichi Kikuchi
Kazuhiro Yamauchi
Hirotaka Araki
Seiichi Miyazawa
Application Number:
JP2019191566A
Publication Date:
September 04, 2023
Filing Date:
October 18, 2019
Export Citation:
Assignee:
Canon Inc
International Classes:
G03G15/02; G03G5/047; G03G5/06; G03G5/14
Domestic Patent References:
| JP201772833A | ||||
| JP2012163954A | ||||
| JP2001254022A | ||||
| JP5142846A | ||||
| JP6148923A |
Attorney, Agent or Firm:
Okabe
Takao Ochi
Koji Yoshizawa
Aki Honda
Takao Ochi
Koji Yoshizawa
Aki Honda
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