| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical scanning device capable of more accurately adjusting a tilt of a rotation shaft 15 in a rotary polygon mirror 3.SOLUTION: An optical scanning device includes: an optical box 25; a circuit board 5 fixed on a bottom surface of the optical box 25; and a rotary polygon mirror 3 rotatably provided on the circuit board 5 so as to deflectively scan a surface to be scanned with a laser beam emitted from a laser unit 1. Also, the optical scanning device includes adjustment means capable of, after the circuit board 5 is fixed on the optical box 25, adjusting a tilt of a rotation shaft 15 by generating a pressing force for pressing the rotation shaft 15 or a bearing 14 provided on the circuit board 5 and pivotally supporting the rotation shaft 15 so that a tilt of the rotation shaft 15 in the rotary polygon mirror 3 varies. |
