Electrophotographic sensitive body

Abstract

Abstract PURPOSE:To obtain an electrophotographic sensitive body for negative charge which has high sensitivity and durability and is highly resistant to ozone oxidation by incorporating at least >=1 kinds of antioxidants selected from a specific group into an electric charge generating layer. CONSTITUTION:At least >=1 kinds of the antioxidants selected from hindered phenols, paraphenylene diamines, hydroquinones, org. sulfur compds. and org. phosphorus compds. are incorporated into the charge generating layer of the electrophotographic sensitive body formed by laminating the charge generating layer and charge transfer layer on a conductive substrate. The amt. of the antioxidants to be added is preferably 0.01-100pts.wt., more particularly preferably 0.1-50pts.wt. per 100pts.wt. charge generating material. The charge generating material is thereby protected and the efficiency of generating charge is maintained; in addition, the charge injection from the aged charge generating material is prevented and the decrease in the potential of the photosensitive body is suppressed.

Inventors

• 👤 Yoshiaki Takei
• 👤 武居　良明
• 👤 Kiyoshi Tamaki
• 👤 玉城　喜代志
• 👤 Koichi Kudo
• 👤 浩一 工藤
• 👤 Yoshihiko Eto
• 👤 嘉彦 江藤

Bibliographic Details