Patent ID: 7193760

Claim:
An optical scanning device, comprising: a light source; a pre-deflection optical device for applying a predetermined characteristic to a light beam irradiated from the light source; a light deflection device mounted on a board for deflecting the light beam having a predetermined characteristic supplied from the pre-deflection optical device in a main scanning direction by reflection; a post-deflection optical device having an image forming lens for focusing the deflected light beam irradiated from the light deflection device on an image forming surface; and a light deflection device adjusting mechanism comprising a fixed member, at least one fixing screw coupling the board to the fixed member, a protruding portion provided on a top surface of the fixed member that provides clearance between the fixed member and the board, and a set screw threaded through the fixed member and configured to enable adjustment of an inclination quantity of the light deflection device by adjusting an inclination quantity of the board.