| 摘要 |
PURPOSE:To improve the efficiency of a copying work, to save a photosensitive paper, to simplify an information management, to make an information medium small-sized, etc. by exposing successively three overlapped sheets of feed paper obtained by overlapping an original on both faces of a photosensitive paper formed by applying a diazo type photosensitive agent onto the surface and the rear side. CONSTITUTION:Feed paper 2 of three overlapped sheets consisting of a photosensitive paper and an original of both its sides is inserted between a running belt 4 and a feed paper roller 3b, and fed onto the circumference of a glass cylinder 6. A light emitted from a light source 21 transmits through an original of its side, and exposes and sensitizes one surface of the photosensitive paper. Subsequently, said feed paper is placed between a belt 13 and the second glass cylinder 10, an exposure of the other surface side is executed in the same way, and the sensitization of both the surfaces is completed. Negative pressure from suction rollers 26 and 31 operates through air holes on the originals of both sides of the three overlapped sheets of feed paper, and they are discharged onto the first and the second original discharge trays 28, 33. In a developing box 35, a filled developer vapor contacts with the photosensitive paper and the development and fixation of a copied picture are executed. In this way, the work efficiency is improved, and photosensitive paper can be saved. |
