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GUTTER DESIGN FOR AN INK JET PRINTER

IP.com Disclosure Number: IPCOM000025432D
Original Publication Date: 1985-Jun-30
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal

Abstract

Continuous stream-type ink jet printers have one or more ink streams emitted under pressure from nozzles of a drop generator which are directed towards a recording medium, such as paper. The pressurized ink is perturbed in the drop generator, so that the ink streams break up into droplets at fixed distances from the nozzles, whereat the individual droplets are charged in accordance with a voltage indicative of digitized data signals. The charged droplets pass through an electrostatic field produced by a pair of deflection plates for each ink stream to deflect the trajectory of each droplet to specific locations on the recording medium. Droplets not to be printed are directed to a gutter for collection and recirculation to the drop generator's ink supply. Generally, a voltage potential is applied to one of the deflection plates and the other is grounded.