| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and apparatus for light beam scanning in which scanning deformation is not generated and a light beam is continuously utilized during the time of reciprocal motion of a micromirror (reciprocal scanning with light beam). SOLUTION: A plurality of laser beams are made incident on one micromirror, the irradiated positions (A, B) of the respective reflected laser beams are dislocated in a subscanning direction on a photoreceptor, and the used laser beams are controlled in time division during a main scanning of one line in a recording time (B1, A1, B2, A2). The distances (d1, d2)between adjacent main scanning line ends are approximately the same, the positional dislocation in the subscanning direction does not occur, and the dislocation in the subscanning direction at the scanning beginning position and the scanning terminating position of main scanning one line substantially does not occur. Thus, the laser beam is continuously utilized during the time of reciprocal motion of the micromirror (reciprocal scanning with laser beam). COPYRIGHT: (C)2006,JPO&NCIPI
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