Electrophotography – Image formation – Development
Reexamination Certificate
2006-03-28
2006-03-28
Lee, Susan (Department: 2852)
Electrophotography
Image formation
Development
C399S233000, C399S240000
Reexamination Certificate
active
07020420
ABSTRACT:
In a device and method for electrographic printing or copying, a latent image carrier is provided having a potential pattern corresponding to an image pattern. An applicator pattern is provided that carries a liquid layer of ink spaced from a surface of the latent image carrier by an air gap. A surface of the applicator element is provided with a structure with which detachment of droplets from the liquid layer is facilitated, the structure having a plurality of first areas having an increased electrical conductivity, a plurality of second areas that differ from a remaining surface based on a portion of surface energy, and a plurality of third areas formed as microscopic elevations. A force field is applied in the air gap to act on the liquid layer. By overcoming the air gap, droplets are transferred from the liquid layer on the surface of the latent image carrier by overcoming the air gap for inking a latent image to create an inked image.
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Berg Martin
Maess Volkhard
Schleusener Martin
Lee Susan
Oce′ Printing Systems GmbH
Schiff & Hardin LLP
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