SIMULTANEOUS IMAGE FORMATION AND DEVELOPMENT DIRECTLY ON RECEIVER
Original Publication Date: 1981-Feb-28
Included in the Prior Art Database: 2004-Apr-02
Xerox Disclosure Journal
An imaging process is provided utilizing charge injection from a photoreceptor into a slightly conductive liquid toner. Referring to the above drawing, there is provided a photoreceptor 1 comprising grounded base 3 and a photoconductive coating 5. The photoconductor is provided with electrically insulating spacers 7 such as may be provided by first coating the photoreceptor with a photopolymer and exposing the photopolymer through a 200 line screen transparency. The photopolymer is then dissolved leaving the spacers 7 as shown. The voids between the spacers are filled with slightly conductive ink, such as by a doctoring device. When an image is desired, the surface of the ink is charged and an image receiving sheet, such as paper 9, is placed on the spacers with a backing electrode 11 raised to a potential approximately equal to the potential on the ink 13. The photo-receptor is exposed to a light image through the substrate 3 resulting in the selective inductive charging of the ink 13. The charged ink moves towards the paper 9 forming an image.