Abstract: An improved method and apparatus for use in exposing of photosensitive material to ultraviolet radiation includes a carrier which is a film strip having a photoconductive layer. The film strip is indexed along a path which extends through a linear array of stations. At a charging station an electrostatic charge is applied to the photoconductive layer on the film strip. At an exposing station, the photoconductive layer on the film strip is exposed to a light pattern which forms a reduced size image of an original to thereby render areas of the photoconductive layer conducting. At a developing station, toner particles are electrically attracted to the conducting areas of the photoconductive layer on the film strip. The toner particles are fused to each other and the material of the film strip to form a permanent visible image. The film strip is then indexed to an exposing station where ultraviolet radiation is directed through the film strip to protect an enlarged image onto photosensitive material.