Color electrophotographic apparatus and image forming units used therein

摘要

A color electrophotographic apparatus for forming color images has advantages of compact and simple construction, easy positioning of an exposure position and easy inspection. The apparatus includes a plurality of rotatable image forming units corresponding to the number of colors, each of the units including a pivotable photosensitive member on which a toner image is formed and a developing device containing a color toner. The apparatus further includes an exposure device for exposing a toner image by emitting a signal light from outside of the image forming units and a mirror for reflecting the signal light to an exposure position, the mirror being placed in the neighbor of a rotation axis.