| 摘要 |
PURPOSE:To evade heat concentration by irradiating light and to form an image with light having high intensity at a high speed even in the case of using a photosensitive body which is weak at heat by dispersing and radiating the light on the photosensitive body. CONSTITUTION:A laser beam 124 including the laser beams 121-123 of three colors is formed by a beam combiner, and the intervals of the respective laser beams 121-123 become equal on a photosensitive pressure sensitive microcapsule paper 5 and are set to be the integral multiple of a scanning line. Then, the laser beam 124 reflected by a polygon mirror 117 is reflected by a cylindrical mirror 118 and radiated to the microcapsule paper 5 on an exposing roller 6. At such a time, scanning exposure is performed in a state where the laser beams 121-123 of the respective colors are dispersed and radiated. Thus, the heat concentration by the irradiating light is evaded, the photosensitive recording medium which is weak at the heat is irradiated with the light having the high intensity, and the image is formed at a high speed. |
