LIGHT SCANNING UNIT AND IMAGE FORMING APPARATUS INCLUDING THE SAME

摘要

A light scanning unit and an electrophotographic image forming apparatus are provided. The light scanning unit includes a light source unit for emitting a light beam, a light deflector for scanning and deflecting the light beam, an imaging optical system having an imaging lens for imaging the scanned and deflected light beam, and first and second reflection members arranged on an optical path, a housing, and first and second assembly members for pressing and fixing the first and second reflection members on the housing. The assembly members press and fix the reflection members on the housing by pressing the reflection members in a direction in which curvature of a scanning line due to the inclination of the first reflection member and curvature of a scanning line due to the inclination of the second reflection member are offset with each other.

主权项

1. A light scanning unit comprising:
a light source unit for emitting a light beam according to an image signal; a light deflector for scanning and deflecting the light beam emitted from the light source unit; an imaging optical system that comprises at least one imaging lens arranged on an optical path from the light deflector to a to-be-scanned surface and imaging the light beam scanned and deflected by the light deflector on the to-be-scanned surface, and first and second reflection members arranged on the optical path from the light deflector to the to-be-scanned surface; a housing for accommodating the light source unit, the light deflector, and the imaging optical system; and first and second assembly members for pressing and fixing the first and second reflection members on the housing, wherein the first and second assembly members press and fix the first and second reflection members on the housing by pressing the first and second reflection members in a direction in which curvature of a scanning line due to the inclination of the first reflection member and curvature of a scanning line due to the inclination of the second reflection member are offset with each other.