Electrophotographic photosensitive member, and electrophotographic apparatus and device unit employing the same

(19)

(11)

EP 0 567 395 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	19.10.1994 Bulletin 1994/42

(43)	Date of publication A2:
	27.10.1993 Bulletin 1993/43

(21)	Application number: 93401029.9

(22)	Date of filing: 21.04.1993

(51)	International Patent Classification (IPC)⁵: G03G 5/04, G03G 5/06

(84)	Designated Contracting States:
	DE FR GB

(30)

Priority:

23.04.1992 JP 129424/92

(71)	Applicant: CANON KABUSHIKI KAISHA
	Tokyo (JP)

(72)	Inventors:
	Senoo, Akihiro, c/o Canon Kabushiki Kaisha Ohta-ku, Tokyo (JP) Kikuchi, Toshihiro, c/o Canon Kabushiki Kaisha Ohta-ku, Tokyo (JP) Kanemaru, Tetsuro, c/o Canon Kabushiki Kaisha Ohta-ku, Tokyo (JP) Tanaka,Takazaku Ohta-ku Tokyo (JP)

(74)	Representative: Santarelli, Marc
	Cabinet Rinuy et Santarelli 14, avenue de la Grande Armée F-75017 Paris F-75017 Paris (FR)

(56)

References cited: :

(54)	Electrophotographic photosensitive member, and electrophotographic apparatus and device unit employing the same

(57) The present invention provides an electrophotographic photosensitive member, comprising an electroconductive support and a photosensitive layer formed thereon, the photosensitive layer containing a triphenylamine represented by the formula (1) below:

wherein R₁, R₂, and R₃ independently represent a hydrogen atom or an alkyl group of 1 to 3 carbons, and at least one of R₁, R₂, and R₃ is ethyl or propyl.

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