| 摘要 |
PURPOSE:To prevent the contamination of transfer materials, etc., and to obtaining an image of good quality by controlling the rising speed of a developer carrier, which is the developing roller, to be smooth. CONSTITUTION:A drum shaped electrophotographic sensitive body 1, which is an image carrier, is carried freely rotatable, a latent image is formed on the photosensitive body by a latent image forming means, consisting of an electrifying device 2 and an exposing device 3, and the latent image is made to be a visual image at a developing device 4. A developer T, inside the device, is carried by this developing device 4, and it is provided with the developer carrier 9, which carries the developer T onto an image carrier 1. Then the traveling speed of this developer carrier 9 is increased to the desired developing speed continuously, or gradually in stages. Thus the splashing of developer can be prevented, contamination of the inside of the machine can be prevented, contamination, etc., of transferring material, etc., can be evaded, and an image of good condition can be obtained. |
