Fitzpatrick, Cella, Harper & Scinto
Electrophotographic photosensitive member, and electrophotographic apparatus and device unit employing the same
 The present invention relates to an electrophotographic photosensitive member comprising an electroconductive support and a photosensitive layer formed thereon: the surface layer of the electrophotographic photosensitive member containing a first copolymer of a first construction unit represented by Formula (1) and a second construction unit represented by Formula (2), and a second copolymer of a third construction unit represented by Formula (3) and a fourth construction unit represented by Formula (4): ##STR1## 
Canon Kabushiki Kaisha
C C G G
C08G C08G G03G G03G
inventional inventional inventional inventional
Hideki Hideyuki Naoto Toshiyuki Shinya Katsumi Junichi Nobuyuki Kiyoshi
Anayama Ainoya Fujimura Yoshihara Mayama Aoki Kishi Hanami Sakai