Patent ID: 7433636

Claim:
A method of producing an image on a final image receptor from image data in a single pass electrophotographic system, comprising the steps of: providing a photoreceptive element; presenting the photoreceptive element to at least one toner development unit containing charged toner particles dispersed in a carrier liquid, 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 surface of the photoreceptive element; (b) selectively discharging portions of the surface of 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 on the surface of the photoreceptive element; and (c) exposing the surface of the photoreceptive element to the charged toner particles, 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; providing a transfer assist material development unit containing a liquid transfer assist material comprising charged particles; applying the transfer assist material to the toned image to form a complete image layer on the photoreceptive element, wherein the complete image layer is formed in the single pass of the photoreceptive element; and contacting the complete image layer with a final image receptor while applying an electrostatic bias potential through the final image receptor that is sufficiently strong to transfer at least a portion of the complete image layer from the photoreceptive element to the final image receptor.