| 摘要 |
PROBLEM TO BE SOLVED: To inexpensively provide an optical scanner in a simple manner in which the shift of the positional relation between a deflecting apparatus and an optical system is easily adjustable and the heat release effect of a polygon motor is enhanced. SOLUTION: The deflecting apparatus 21 is constituted of: a mirror driving part 25 composed of the polygon motor 17 and a circuit board 18; a polygon mirror 34; and a dust cover 22 or the like. An open part 6 which is smaller than a deflecting apparatus mounting plate 3 and is sized to penetrate the deflecting apparatus 21 therethrough is formed on the housing part 16a of the optical scanner 20, the deflecting apparatus mounting plate 3 is fixed from the outside of the housing part 16a with six machine screws 5a so as to block the open part 6, and the circuit board 18 is fixed on the deflecting apparatus mounting plate 3 with four machine screws 5b via the open part 6 from the inside of the housing part 16a. COPYRIGHT: (C)2007,JPO&INPIT |
