| 主权项 |
1. An image forming apparatus comprising:
a scanning optical device; and a frame to which the scanning optical device is mounted, the scanning optical device including:
a light source;a deflector configured to rotate around a rotating shaft extending in a vertical direction to deflect light emitted from the light source;optical component groups configured to be disposed around the deflector and to focus the light deflected by the deflector on a surface of an image carrier; andan optical box in which the light source, the deflector, and the optical components groups are housed, the optical box being supported by the frame,wherein a heat sink is disposed between the deflector and the frame,a first protrusion extending on an extension line of the rotating shaft of the deflector is formed in the heat sink, anda first engaging hole with which the first protrusion engages is formed in the frame. |
