Abstract: An image reversal process for the production of electrophotographic color proofs from negative separation films where the photoconductive recording member is reusable and the proofs are produced on printing stock paper and which very closely match the appearance of the printed sheet.

Abstract: A process for producing a reversed image proof from a negative film separation (66) including applying a uniform toner layer (60) to an offset member (46), exposing a charged surface (20) through the film separation (66) to produce unexposed non-image areas (68) and exposed image areas (70) thereon, contacting the offset member (46) to the charged surface (20) to transfer toner (74) from the offset member (46) to the surface (20) in the non-image areas (68), leaving an image residue (76) upon the offset member (46), and contacting the offset member (46) to a receptor (49) to transfer the image (76) thereto. The process may be repeated for subsequent colors to produce a positive multicolor image and may also be adapted to conventional proofers formerly capable of producing images from positive film separations only.

Abstract: An emulsified polymer color toner in a liquid carrier is provided for application to a latent electrostatic image on an electrostatographic recording member and transferred to a receptor sheet. The color toner consists of a colorant and a polymeric binder. A polymer solvent is applied to the receptor sheet surface carrying the deposited toner layer to dissolve part of the binder sufficient to transparentize the color layer, glaze and to fuse the toner layer. The glazing, transparentizing and fusing is effected without increase in dot gain. The polymer dispersant is insoluble in the toner carrier. The polymer solvent is removed from the receptor sheet and the sheet can be polished after removal of the solvent.