Light-orientation adjusting unit, optical writing unit having light-orientation adjusting unit, and image forming apparatus having optical writing unit

摘要

A light-orientation adjusting unit for use with a light-receiving member includes an optical unit (50), a posture control unit (56, 58), a first regulating member, (61b), and a second regulating member (62b). The optical unit (50) passes a light beam (L) therethrough toward the light-receiving member. The posture control unit (56, 58) controls the posture of the optical unit (50) to adjust an inclination of a scanning line to be formed on the light-receiving member by the light beam (L). The first regulating member (61b) regulates a movement of the optical unit (50) within a given range by contacting the first regulating member (61b) to the optical unit (50). The second regulating member (62b) regulates a movement of the optical unit (50) within a given range by contacting the second regulating member (62b) to the optical unit (50). The first regulating member (61b) is provided with a first biasing member (61a), and the second regulating member is provided with a second biasing member (62a), which are disposed on first and second ends of the optical unit (50), respectively.