| 摘要 |
PURPOSE:To improve the primary potential characteristics and retentivity of a photosensitive screen body for an electrophotographic system using a screen process by making the central part of the substrate of a screen mesh thinner than the peripheral part. CONSTITUTION:The central part of the substrate 1 of a screen mesh for manufacturing a photosensitive screen body for an electrophotographic system using a screen process is made thinner than the peripheral part by shaving, and a PC layer 2 and an InS layer 3 are coated on the substrate 1 to obtain the desired photosensitive screen body. Since the screen mesh 1 is concaved, each of the layers 2, 3 can be coated to a large thickness, and sticking to the side of the mesh 1 is hardly caused. Accordingly, the potential of a primary latent image is stabilized, the area of openings is increased to improve the efficiency of transfer of a secondary latent image, and many copies can be obtd. from one latent image without reducing the image density. |
