an electrophotographic process wherein an image is formed with toner comprising a mutable colorant and an ultraviolet radiation transorber so that an image formed by the electrophotographic process can be altered in color or erased . the electrophotographic process comprises the steps of creating an image on a photoreceptor surface , applying a toner on the photoreceptor surface to form a toner image which replicates the image , transferring the toner image to a substrate , and fixing the toner image to the substrate . the toner comprises a mutable colorant , an ultraviolet radiation transorber , and a carrier comprising a polymer . the ultraviolet radiation transorber is adapted , upon exposure to ultraviolet radiation , to interact with the mutable colorant to irreversibly mutate the mutable colorant from an initial absorption maximum to a new absorption maximum different from the initial absorption maximum . the electrophotographic process may further comprise exposing the toner image on the substrate to ultraviolet radiation at a dosage level sufficient to irreversibly mutate the colorant and change the color of the toner image or render the image colorless . the substrate can then be reused to form a second toner image thereon .