| 摘要 |
PURPOSE:To obtain an electrophotographic receptor forming an image of high contrast and high density, and having superior humidity resistance and high durability, etc., by forming an Ni conductive layer on a substrate, and forming an Se type photoconductive layer and a transparent insulating layer in succession. CONSTITUTION:A conductive layer 2 is formed on a conductive substrate of aluminum or the like or an insulating substrate 1, such as polyester. On the layer 2, a photoconductive layer 3 contg. Se alone, or Se as a main component, and Te or the like, and on the layer 3 a tansparent insulating layer 4 made of polyester resin or the like. It is preferable that a laminate photoconductive layer 3' consisting of an Se type charge transfer layer 3a of Se doped with <=4,000 ppm halogen, and a charge generating layer 3b contg. 5-25% Te is used in place of the single layer 3. It is advantageous to keep the temp. of the substrate 1 at 55-65 deg.C at the time of forming the layers 3, 3', and to heat treat said substrate at 30-65 deg.C after forming the insulating layer. As a result, a photoreceptor forming a high-contrast and high-density image and having good durability is obtained. |
