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 JP7301613
Kind Code:
B2
Abstract:
The present disclosure provides an electrophotographic photosensitive member that can simultaneously achieve the suppression of the occurrence of the black spot in a charged portion and the suppression of the deterioration in sensitivity of an exposed portion, even after stored in a high-temperature and high-humidity environment. An electrophotographic photosensitive member includes an electro-conductive support, an undercoat layer, a charge generation layer and a charge transport layer in this order, wherein an atomic concentration ratio R of the oxygen atom to the aluminum atom on the surface of the electro-conductive support, as measured by energy dispersive X-ray spectroscopy, satisfies the following Expression (1): 1.6≤R and the undercoat layer includes a titanium oxide particle that is surface-treated with a particular silane compound.
Inventors:
Shuhei Iwasaki
Akira Sakakibara
Junpei Kuno
Yota Ito
Kohei Makikado
Akira Sakakibara
Junpei Kuno
Yota Ito
Kohei Makikado
Application Number:
JP2019111486A
Publication Date:
July 03, 2023
Filing Date:
June 14, 2019
Export Citation:
Assignee:
Canon Inc
International Classes:
G03G5/14; G03G5/06; G03G5/10
Domestic Patent References:
| JP2003345045A | ||||
| JP2002365821A | ||||
| JP2007293322A | ||||
| JP2009008957A | ||||
| JP2003177561A | ||||
| JP2016028266A | ||||
| JP2003029440A | ||||
| JP2014182296A | ||||
| JP2003215825A | ||||
| JP2007334341A |
Attorney, Agent or Firm:
Okabe
Takao Ochi
Koji Yoshizawa
Aki Honda
Takao Ochi
Koji Yoshizawa
Aki Honda