Electrophotographic color image forming apparatus.

摘要

In a color image forming apparatus, an image forming body (10) has a inner surface and a outer surface, a charging device (11) electrically charges the outer surface, an exposure device (12) imagewise exposes the inner surface; and a developing device (13) develops so as to form a first toner image on the external surface. A unit is detachably mounted in a housing of the apparatus, wherein the image forming body and a plurality of the exposure devices are provided in the unit.