0504794-A1 is referenced by 19 patents and cites 8 patents.

A electrophotographic photosensitive member and an electrophotographic apparatus, a device unit and a facsimile machine using an electrophotographic photosensitive member which comprises a conductive support, a photosensitive layer and a protective layer, the protective layer containing resin formed by hardening a light-setting type acrylic monomer, and the photosensitive layer containing at least one compound selected from the group consisting of (A), (B) and (C) below: (A) styryl compounds having a structure expressed by the following formula (1) and a melting point not higher than 135 DEG C; wherein Ar and Ar are aromatic ring groups, Ar is a bivalent aromatic ring group or a bivalent heterocyclic group, R is an alkyl group or an aromatic ring group, R is a hydrogen atom, an alkyl group or an aromatic ring group, and n1 is 1 or 2, R and R possibly linking to form a ring when n1 = 1: (B) triarylamine compounds having a structure expressed by the following formula (2) and a melting point not higher than 150 DEG C; wherein Ar, Ar and Ar are each an aromatic ring group or a heterocyclic group: (C) hydrazone compounds having a structure expressed by the following formula (3) and a melting point not higher than 155 DEG C; wherein R is a hydrogen atom or an alkyl group, R and R are alkyl groups, aralkyl groups or aromatic ring groups, n2 is 1 or 2, A is an aromatic ring group, a heterocyclic group or - CH = C(R)R (R and R are hydrogen atoms, aromatic ring groups or heterocyclic groups, but will never be hydeogen atoms at the same time). The photosensitive member suppresses the occurrence of cracks during forming of the protective layer, has high durability, and is free from any image defects.

Title
Electrophotographic photosensitive member and electrophotographic apparatus, device unit and facsimile machine using the same.
Application Number
EP19920104575 19920317
Publication Number
0504794 (A1)
Application Date
March 17, 1992
Publication Date
September 23, 1992
Inventor
Tsuji Haruyuki
JP
Aoki Katsumi
JP
Nagahara Shin
JP
Amamiya Shoji
JP
Kikuchi Toshihiro
JP
Maruyama Akio
JP
Assignee
Canon
JP
IPC
G03G 05/147
G03G 05/06
G03G 05/147
G03G 05/06
G03G 05/147
G03G 05/06
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