The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 1986
Filed:
Jul. 09, 1984
Yuji Nishigaki, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrophotographic photosensitive member comprising a photosensitive layer having a laminated structure of charge generation and charge transport layers on a conductive substrate is characterized in that the charge generation layer contains a copper phthalocyanine pigment and the charge transport layer contains a hydrazone compound and a binder. A process for forming electrostatic latent images comprises the steps of (1) giving electric charge to the face of an electrophotographic photosensitive member comprising a photosensitive layer having a laminated structure on a conductive substrate, said laminated structure consisting of a charge generation layer containing copper phthalocyanine and a charge transport layer containing a hydrazone compound and a binder and (2) scanning the charged face with a laser beam. An image-forming process comprises the steps of (1) giving electric charge to the face of an electrophotographic photosensitive member having a photosensitive layer of a laminated structure on a conductive substrate, said laminated structure consisting of a charge generation layer containing copper phthalocyanine and a charge transport layer containing a hydrazone compound and a binder, (2) scanning the charged face with a laser beam, and (3) developing the resulting electrostatic latent image with a developer. A process for preparing an electrophotographic photosensitive member, comprises the steps of (1) applying a dispersion of copper phthalocyanine in a resin solution onto an aluminum cylinder by dip coating to form a charge generation layer and (2) applying a hydrazone compound dissolved in a resin solution onto the previously formed charge generation layer by dip coating to form a charge transport layer thereupon.