| 摘要 |
PROBLEM TO BE SOLVED: To accurately and easily perform the assembly adjusting work of an optical housing with respect to an image forming apparatus. SOLUTION: When the optical housing 2 provided with a laser beam source, a deflecting means and an image formation optical system is attached along a guiding means 32, the position of the housing 2 in a scanning direction is set by a scanning direction positioning means 40, and also the position of the housing 2 in an optical axis direction is determined just by making the housing 2 abut on an optical axis direction positioning means 41. By providing a subscanning direction inclination adjusting means 53, the inclination of the housing 2 in the subscanning direction of a scanning line is adjusted. COPYRIGHT: (C)2003,JPO
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