| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To correct displacement of an image recording position without the use of a mechanical adjusting mechanism, even if an error occurs in optical magnification of each recording element unit, when an image is recorded by a recording head which is constituted by arranging a plurality of the recording element units in a direction crossing a scanning direction. <P>SOLUTION: A physical instrumental difference in an optical system of the recording element unit 166, an error in assembly, and a variation in the optical magnification, which is caused by variation with time due to environmental temperature and humidity, are pre-recognized by measurement using a light quantity monitor 50. According to this amount of displacement, the timing of the start of image recording is corrected in the scanning direction, and resolution is changed in the direction crossing the scanning direction. Since a position of the image in standard magnification is maintained, the displacement of the image recording position with respect to a photosensitive material 150 can be eliminated without the complicated adjusting mechanism, for example, for rotatively moving and adjusting the unit 166. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
