US 9,811,012 B2
Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus and process for producing electrophotographic photosensitive member
Mai Murakami, Kashiwa (JP); Ryoichi Tokimitsu, Kashiwa (JP); and Wataru Kitamura, Abiko (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Sep. 15, 2016, as Appl. No. 15/265,995.
Claims priority of application No. 2015-187179 (JP), filed on Sep. 24, 2015; and application No. 2016-169483 (JP), filed on Aug. 31, 2016.
Prior Publication US 2017/0090309 A1, Mar. 30, 2017
Int. Cl. G03G 5/14 (2006.01)
CPC G03G 5/144 (2013.01) 9 Claims
 
1. An electrophotographic photosensitive member comprising:
a support;
an undercoat layer on the support; and
a photosensitive layer on the undercoat layer, wherein
the undercoat layer comprises:
(α) a metal oxide particle;
(β) a compound represented by formula (1):

OG Complex Work Unit Drawing
wherein R1 to R5 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 or more and 6 or less carbon atoms, an alkoxy group having 1 or more and 8 or less carbon atoms, or an amino group, and R6 to R10 each independently represent a hydrogen atom, a hydroxy group, a halogen atom, an alkyl group having 1 or more and 6 or less carbon atoms, an alkoxy group having 1 or more and 8 or less carbon atoms, or an amino group, provided that 1 or 2 of R6 to R10 are hydroxy groups and there is not a case where 3 or more of R6 to R10 are hydroxy groups; and
(γ) a compound represented by formula (2):

OG Complex Work Unit Drawing
wherein R1 to R5 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 or more and 6 or less carbon atoms, an alkoxy group having 1 or more and 8 or less carbon atoms, or an amino group, and A1 represents an alkenyl group having 2 or more and 4 or less carbon atoms.