| 摘要 |
PURPOSE:To change color easily by arranging two developing rolls and developing machines, which correspond to these rolls and are different in color, between main and following-up rolls which drive an endless belt-shaped photosensitive body and selecting one of them. CONSTITUTION:An endless belt-shaped photosensitive body 2 is circulated by a main roll 1a and a following-up roll 1b as shown by an arrow. The photosensitive body 2 which passes a normal charging charger 6 and an exposure device 8 to reach a developing part is pressed to the first developing roll 3 and the first developing device (the state shown by the figure) or the second developing roll 4 and the second developing device 10 in accordance with designation of a selecting switch omitted in the figure and has an image developed with, for example, black or green and is carried furthermore, and the image is transferred to a copy paper 15 in a cartridge 14 by a means 19 and is fixed by a means 23. The belt 2 is cleaned by a means 24 and has electricity removed by a means 25 and is restored to the initial state. Plungers 28 and 12 are operated by the operation of the color selecting switch to switch a connecting device 5 and a shutter 11. Thus, colors are selected easily, and blur or color is prevented. |
