Title:
電子写真感光体、プロセスカートリッジ及び電子写真装置
Document Type and Number:
Japanese Patent JP6860423
Kind Code:
B2
Abstract:
To provide an electrophotographic photoreceptor with high sensitivity and with suppressed leakage, and also to provide a process cartridge and an electrophotographic apparatus including the electrophotographic photoreceptor.SOLUTION: The electrophotographic photoreceptor includes a support, an undercoat layer, and a photosensitive layer in this order. The undercoat layer contains: a polymer of a composition comprising an electron transport material having a polymerizable functional group, a thermoplastic resin having a polymerizable functional group, and a cross-linking agent; and particles having a number average particle diameter of 300 nm or less, the content of the electron transport material having the polymerizable functional group in the composition being 30 mass% or more with respect to the total mass of the composition, the content of the particles being 5 mass% or more and 20 mass% or less with respect to the content of the composition, and the Martens hardness of the polymer being 250 N/mmor less.SELECTED DRAWING: None
Inventors:
Michiyo Sekiya
Kunihiko Sekito
Nishi Masashi
Hiroyuki Watanabe
Kunihiko Sekito
Nishi Masashi
Hiroyuki Watanabe
Application Number:
JP2017104546A
Publication Date:
April 14, 2021
Filing Date:
May 26, 2017
Export Citation:
Assignee:
Canon Inc
International Classes:
G03G5/14
Domestic Patent References:
| JP2016153854A | ||||
| JP2015143830A | ||||
| JP2015143828A | ||||
| JP5030133U | ||||
| JP2014026272A | ||||
| JP2017072803A |
Attorney, Agent or Firm:
Okabe
Takao Ochi
Koji Yoshizawa
Masami Saito
Takao Ochi
Koji Yoshizawa
Masami Saito