| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive optical scanner capable of securing prescribed stroke quantity in skew correction and attaining highly accurate adjustment. SOLUTION: When a jig is inserted into a groove part 90 and an adjustment member 68 is rotated, a screw part 70 screwed into a sidewall 26C moves forward and backward and the arm part 66 of an eccentric cam 56 is displaced. Thereby the cam 56 is rotated, the one-point supporting side of the reflection face 52 of a cylindrical mirror 44M is displaced in an arrow B direction and the SKEW correction of a scanning beam is performed. Since the arm part 66 is formed so as to be projected from the outer periphery of an abutting part 62 of the cam 56 in a diameter direction, the sensitivity of correction is improved, fine adjustment can be highly accurately performed and adjustment quantity (stroke quantity) can be largely secured. |
