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 JP7146459
Kind Code:
B2
Abstract:
To provide an electrophotographic photoreceptor in which generation of a charging lateral stripe and generation of a black spot are suppressed in repetitively using for a long period under a low temperature and low humidity environment.SOLUTION: An electrophotographic photoreceptor comprises a support body, an undercoat layer and a photosensitive layer in this order, the undercoat layer contains binder resin, zinc oxide particles (P1) in a range of particle diameter of 20-40nm, and zinc oxide particles (P2) in a range of particle diameter of 45-65nm, a total amount of content of total zinc oxide particles in the undercoat layer is 200-350 mass % for the binder resin in the undercoat layer, the total amount of content of the P2 and the P1 in the undercoat layer is 50-100 number % for total content of the zinc oxide particles in the undercoat layer, content of the P1 in the undercoat layer is 5-60 number % for the total amount of content of the P2 and the P1 in the undercoat layer, and a difference between a most frequent value of a particle diameter of the P2 in the undercoat layer and a most frequent value of a particle diameter of the P1 is more than or equal to 10nm.SELECTED DRAWING: Figure 1
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Inventors:
Haruhiko Mitsuda
Miki Tanabe
Takeshi Shimada
Takeuchi Irene
Akira Kitamura
Miki Tanabe
Takeshi Shimada
Takeuchi Irene
Akira Kitamura
Application Number:
JP2018105598A
Publication Date:
October 04, 2022
Filing Date:
May 31, 2018
Export Citation:
Assignee:
Canon Inc
International Classes:
G03G5/14
Domestic Patent References:
| JP2015184494A | ||||
| JP2014126702A | ||||
| JP2010175740A | ||||
| JP2016122170A | ||||
| JP2016110129A | ||||
| JP2003084472A | ||||
| JP11015184A | ||||
| JP2003057902A |
Attorney, Agent or Firm:
Okabe
Takao Ochi
Koji Yoshizawa
Aki Honda
Takao Ochi
Koji Yoshizawa
Aki Honda