| 摘要 |
PURPOSE:To improve the quality of a copied image and to improve the accuracy of cutting the image by a blank lamp by always keeping a distance between a screen film and the blank lamp, and the photosensitive body nearly constant. CONSTITUTION:A screen holding member 25 where a screen film 24 is elastically stretched is turnably provided in a unit main body 27 and also the blank lamp 29 is fixed in the main body 27. Rollers 30 and 30 for regulating the space between the photosensitive body 3 and the roller 30 by abutting on the photosensitive body 3 are provided in the lower part of the main body 27. The main body 27 is always elastically pressed toward the photosensitive body 3 by leaf springs 31 and 31. When the member 25 is set at an exposing position above the photosensitive body 3, rollers 33 and 33 abut on the photosensitive body and the member 25 is elastically pressed toward the photosensitive body 3 by torsion coil springs 34 and 34. |
