| 摘要 |
An optical scanner scans target surfaces with laser beams emitted from first and second light sources and deflected by a light deflector. The optical scanner includes a first frame on which the first and second light sources, and the light deflector are mounted. The first frame has first and second exposure openings each extending in a main scanning direction and configured allow a laser beam to pass therethrough from an interior of the optical scanner toward a corresponding target surface outside the optical scanner. The light deflector is attached to the first frame in a surrounding area defined by the first and second exposure openings. A second frame is provided opposite to the first frame on a side of the first frame where the light deflector is positioned, and at least one connecting member for connecting the first and second frames is provided in the surrounding area.
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