| 摘要 |
<p>PROBLEM TO BE SOLVED: To support a width directional end part of a photosensitive material in point contact, and prevent nonuniformity of a carry by continuously arranging at least two rollers in the sub-scanning direction on a side surface, and arranging a carrying guide where at least a single roller is respectively arranged on upper and lower surfaces in the vicinity of the sub-scanning carrying directional upstream side of an exposing part. SOLUTION: A carrying guide 142 extending in the sub-scanning direction in a cross-sectional almost U shape is added to a light beam scanning exposing device to scan and expose a long size photosensitive material carried in the sub-scanning direction by an exposing light source to emit a light beam deflected in the main scanning direction. In this carrying guide 142, its upper surface 144 and an end part of a carrying-in part 150 of a side surface 146 are inclined outside so that the photosensitive material is smoothly carried in, and are curved to the lower side in an end part of the carrying-in part 150 of a lower surface 148. Since two rollers 152, 154 and 156 are respectively arranged in the sub- scanning direction on the side surface 146 and the upper and lower surfaces 144 and 148, an end part of the photosensitive material can be supported in point contact.</p> |
