| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase the life time of an exposure light source and to prolong the period in the exchange cycle to reduce the cost in an exposure method for exposing, by an exposing unit having a plurality of exposure head lines arranged in the sub scanning direction. <P>SOLUTION: Irradiation with exposure light or stopping irradiation by the unit of an exposure head line 163a or 163b can be performed, by controlling the drive of a laser module emitting the exposure light; and the driving of the laser module is controlled, in such a manner that if the irradiation range of the exposed light by the head line 163b is not located on a photosensitive material 150, irradiation with the exposure light by the exposure head line 163b is stopped. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
