Multicolor electrophotography apparatus.

摘要

A multicolor electrophotography apparatus for forming a color image on a rotatable photosensitive device (11) shaped cylindrically and arranged to hold on its circumferential surface an electrostatic image optically formed by an exposing device. The apparatus includes a plurality of developing devices (31,32,33,34) movably provided along the circumference of the photosensitive device (11) for developing a plurality of different-color toner images overlapping each other. Each of the developing devices (31,32,33,34) is selectively driven to take a developing position and a non-developing position, each of the developing devices (31,32,33,34) being closed to photosensitive device (11) up to the developing position and being separated therefrom up to the non-developing position. When the exposing device is in the non-operated state, at least one of the developing devices takes the developing position and the other developing devices take the non-developing positions.