Electrostatic duplicator for multicolor imagery

An electrostatic duplicator for forming color composite images and employing preformed electrostatic masters (color separated fixed toner images). The duplicator has a drum including four flat sides for mounting respective ones of the masters (4). The respective functional stations (charging, toning, transfer and cleaning) are positioned about said drum adjacent the respective flat sides. The drum is stationary during performance of the functions and automatically rotatable by an angle of 90 DEG in order to advance each of the electrostatic masters to the next station. Printing stock (to receive the transferred image) remains stationary until all of the component images of the composite image are received.