Electrophotography – Image formation – Development
Reexamination Certificate
2004-07-29
2008-12-09
Tran, Hoan H (Department: 2852)
Electrophotography
Image formation
Development
C399S239000, C399S240000
Reexamination Certificate
active
07463851
ABSTRACT:
In a method or device for transport of liquid developer to an image carrier element for electrophoretic digital printing, a developer unit is arranged adjacent to the image carrier element, the developer unit directing a liquid developer having toner particles to the image carrier element, the toner particles crossing over to the image carrier element corresponding to previously-generated potential images. A raster unit is arranged adjacent to the developer unit. The raster unit transports the liquid developer to the developer unit by use of a raster. An electrical voltage is applied between the raster unit and the developer unit in order to exert a targeted field effect on the toner particles in a direction towards the developer unit. A chamber scraper having a dosing scraper is arranged adjacent to the raster unit and having liquid developer having the toner particles which are already charged. From the chamber scraper the raster unit accepts the liquid developer via the dosing scraper. The chamber scraper is arranged and operable such that the dosing scraper is washed over by the liquid developer.
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Berg Martin
Maess Volkhard
Schleusener Martin
Oce Printing Systems GmbH
Schiff & Hardin LLP
Tran Hoan H
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