METHOD AND APPARATUS FOR APPLYING TONER TO AN ELECTROSTATIC IMAGE

摘要

A series of electrostatic images carried by a drum (2) or similar image member are toned with different colored toners by a movable developing device (4). The developing device moves a series of developing units (10, 20, 30, 40) to a position aligned with the drum. An applicator (11) in an aligned unit is moved relative to the rest of the unit toward the drum to operatively position the unit for developing each electrostatic image. The applicator (11) is precisely positioned whith respect to the image member by a pair of pins (110, 111) fixed with respect to the image member which fits into a pair of holes (114, 115) fixed with respect to the applicator to control relative lateral and rotational movement. Rollers (112, 113) on opposite ends of the applicator space the applicator (11) and image member (2).