Electrostatic 3-D printer controlling layer thickness using feedback loop to exposure device

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United States of America Patent

PATENT NO 10005228
APP PUB NO 20170326797A1
SERIAL NO

15150585

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Abstract

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3-D printers include an intermediate transfer surface that transfers a layer of material to a platen each time the platen contacts the intermediate transfer surface to successively form a freestanding stack of layers of the material on the platen. A sensor detects the thickness of the layer on the platen after a fusing station fuses the layer. A feedback loop is electrically connected to the sensor and a development station (that includes a photoreceptor, a charging station providing a static charge to the photoreceptor, a laser device exposing the photoreceptor, and a development device supplying the material to the photoreceptor). The exposure device adjusts the intensity of light exposed on the photoreceptor, based on a layer thickness measurement from the sensor through the feedback loop, to control the thickness of subsequent ones of the layers transferred from the intermediate transfer surface to the freestanding stack on the platen.

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Patent Owner(s)

  • XEROX CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alvarez, Jorge A Webster, US 43 237
Clark, Robert A Williamson, US 56 353
Liu, Chu-heng Penfield, US 259 1462
McConville, Paul J Webster, US 186 616
Nowak, William J Webster, US 64 752
Zona, Michael F Webster, US 84 419

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