| 摘要 |
PURPOSE:To obtain superior sensitivity and durability with plus electrostatic charging property by forming a charge transfer layer and a charge generation layer on a conductive base successively, incorporating a charge transfer material and a binder in the charge transfer layer at a specific ratio, and incorporating the charge transfer material in the change generating layer. CONSTITUTION:The charge transfer layer which contains the charge transfer material and binder and the charge generation layer which contains the charge generating material and binder are laminated on the conductive base in order; the charge transfer material and binder are incorporated in the charge transfer layer at >=(12:10) and the charge transfer material is incorporated in the charge generating layer by 10-70wt%. The photosensitive body of this constitution is for plus charging and has the charge generating layer as its surface layer, so deterioration of the charge transfer material is prevented and the contents of the binder in the charge transfer layer is reduced. Further, the charge transfer material in the charge transfer layer is increased to 1.2 times as large as the binder to maintain excellent sensitivity. Further more, the charge transfer material is incorporated in the charge generation layer to increase the film thickness without spoiling the sensitivity nor memory charac teristics, thereby improving the mechanical strength and durability of the surface of the photosensitive body.
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