| 摘要 |
PURPOSE:To precisely guide image light to an image forming means by executing the decision of the stopping position of an optical lens which moves with an original platen at the time of forming a board writing image with the aid of a positioning means disposed in a board writing scanning means. CONSTITUTION:The optical lens 18 for projecting the image light from the board writing scanning means 11 disposing an optical system L which guides the optical image on a board writing surface 1 to an image forming means 3 is disposed on an original platen 6. And the positioning means 26 for deciding the stopping position of the optical lens 18 which moves with the original platen 6 at the time of forming the board writing image is set in the board writing scanning means 3. Thus, the image light can be precisely guided to the image forming means at the time of forming the board writing image without necessitating adjustment by a jig. |
