Electrophotography – Image formation – Development
Patent
1997-05-14
1998-10-20
Royer, William J.
Electrophotography
Image formation
Development
399237, G03G 1510
Patent
active
058261451
ABSTRACT:
An electrographic printing apparatus comprises a rotatable charge bearing member, a rotatable roller assembly which applies a chargeable pre-wetting oil to the surface of the charge bearing member, a charger assembly which applies uniform charge to the surface of the charge bearing member and/or the pre-wetting oil coating, and a light source which discharges selected areas on the charge bearing member and/or the pre-wetting oil to produce a latent electrostatic image thereon. The electrographic printing apparatus further comprises a liquid development system comprising an ink head assembly which applies liquid toner to the charge bearing member thereby developing the latent electrostatic image, and a rotatable transfer member which receives the developed image from the charge bearing member and then transfers it to a substrate such as paper. The electrographic printing apparatus may also be adapted to produce color images on the substrate.
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Advanced Color Technology, Inc.
Royer William J.
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