Ceramic printhead for direct electrostatic printing
AssigneeXerox Corporation
InventorsFred Schmidlin, Heiko Rommelmann
Life of this patent
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Abstract
A printhead for electrostatic printing comprises a membrane, made of a non-crystalline ceramic material, defining a first surface and a second surface, and defining a plurality of apertures therein. A plurality of addressable segmented electrodes are disposed on the first surface around substantially the periphery of an aperture on the first surface, each segment of the addressable segmented electrodes being isolated from each other segment. A conductive layer is disposed on the second surface around substantially the periphery of at least one aperture on the second surface. The ceramic membrane facilitates the incorporation of active electronic devices on the printhead.
Claims11
A printhead for electrostatic printing, comprising:
- a membrane, made of a non-crystalline ceramic material, defining a first surface and a second surface, and defining a plurality of apertures therein;
- a donor member, adapted to convey toner particles to the plurality of apertures in the membrane;
- a plurality of addressable segmented electrodes, each disposed on the first surface of the membrane around substantially a periphery of an aperture on the first surface, each segment of the addressable segmented electrodes being isolated from each other segment;
- and
- a conductive layer, disposed on the second surface of the membrane around substantially a periphery of at least one aperture on the second surface, one of said first or second surface of the membrane faces said donor member and is shaped to substantially conform to the shape of the donor member.
Dependencies are inferred from the claim text.