Method for direct electrostatic printing (DEP) a substrate compr

Details Method for direct electrostatic printing (DEP) a substrate compr Method for direct electrostatic printing (DEP) a substrate compr

1997-08-06

2000-04-18

Barlow, John

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 204

Patent

active

060506776

ABSTRACT:
A method and apparatus is provided for a direct electrostatic printing on a substrate irrespective of the surface topology and conductivity of the substrate. A conductive layer is applied to a surface of the substrate to be printed. A voltage source is connected to establish a DC electric field between the conductive layer and a source of toner particles to create a flow of toner particles from the source to the surface of the substrate. A printhead structure is provided between the source and the substrate to image-wise modulate the flow of toner particles, and the toner particles are fixed on the substrate.

REFERENCES:
patent: 4001838 (1977-01-01), Maddox
patent: 5305026 (1994-04-01), Kazuo et al.
patent: 5353105 (1994-10-01), Gundlach et al.
patent: 5781217 (1998-07-01), Desie

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