Variable magnification imaging device for copier

摘要

A variable magnification imaging device for a copier employs a swingable mirror assembly and a cam and follower mechanism for regulating the angular position of the mirror assembly. As a carriage supporting a lens thereon moves along an optical axis toward and away from the mirror assembly, the mirror assembly is caused to swing automatically to a desired magnification position through a parallelogram link mechanism, while having its angular position properly regulated by the cam and follower mechanism.