Patent ID: 7294441

Claim:
A method of producing a composite image on a final image receptor from image data in a single pass electrophotographic system, comprising the steps of: providing a photoreceptive element; providing a transfer assist material development unit containing a liquid transfer assist material comprising transfer assist material particles dispersed in a first carrier liquid; applying the transfer assist material to at least a portion of the surface of the photoreceptive element; presenting the photoreceptive element to at least one toner development unit comprising a toner, wherein the following steps (a) through (c) are performed in a single pass of the photoreceptive element; (a) applying a substantially uniform first electrostatic potential to the photoreceptive element; (b) selectively discharging the photoreceptive element in an imagewise manner to create a first latent image having a second electrostatic potential that is less than the absolute value of the first electrostatic potential; and (c) exposing the photoreceptive element to the toner comprising charged toner particles dispersed in a second carrier liquid, wherein the charged toner particles selectively deposit on the discharged portions of the surface of the photoreceptive element to develop the first latent image and create a toned image overlapping at least a portion of the transfer assist material on the surface of the photoreceptive element; wherein the transfer assist material and the toned image form a composite image layer on the photoreceptive element that is formed in the single pass of the photoreceptive element; substantially drying the composite image layer to remove at least a major portion of the second carrier liquid during the single pass of the photoreceptive element; and contacting the composite image layer with a first side of a final image receptor having two sides and applying force to the second side of the final image receptor with a backup element, causing the composite image layer to adhesively transfer to the first side of the final image receptor.