OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS

摘要

An optical scanning device includes a housing, a polygon mirror, and a motor. The polygon mirror is disposed in the housing and reflects light incident thereon while being rotated. The motor is disposed in the housing and rotates the polygon mirror. The housing has a cooling passage that cools the interior of the housing. The cooling passage is asymmetrically located relative to a rotation shaft of the motor in a cross section perpendicular to the main scanning direction.

主权项

1. An optical scanning device for forming an image on a scanning target by scanning the scanning target with light in a main scanning direction, the optical scanning device comprising:
a housing; a polygon mirror disposed in the housing and configured to reflect light incident thereon while being rotated; and a motor disposed in the housing and configured to rotate the polygon mirror, wherein the housing has a first cooling passage configured to cool an interior of the housing, and the first cooling passage is asymmetrically located relative to a rotation shaft of the motor in a cross section perpendicular to the main scanning direction.