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A NUTATING ARRAY OF INK JETS

IP.com Disclosure Number: IPCOM000023846D
Original Publication Date: 1979-Feb-28
Included in the Prior Art Database: 2004-Apr-01
Document File: 2 page(s) / 199K

Publishing Venue

Xerox Disclosure Journal

Abstract

In one type of ink jet printing system, an array of jets is used to print on moving paper. If the array is held stationary, the definition of the resulting image depends on the number of jets and their spacing. It is undesirable economically to have a

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XEROX DISCLOSURE JOURNAL

A NUTATING ARRAY OF INK JETS Kenneth H. Fischbeck

Marcus M. Schnarr

PAPER MOTION

Proposed Classification

U.S. CL 346/1 Int. CL GOld 9/00

In one type of ink jet printing system, an array of jets is used to print on moving paper. If the array is held stationary, the definition of the resulting image depends on the number of jets and their spacing. It is undesirable economically to have a

large number of jets, and it is difficult to manufacture an array with densely packed jets. To increase image definition with a given number of jets, the array

can be moved back and forth across the moving paper as is well known. This results in a sinusoidal jet movement across the uniformly moving paper. The dots formed by this system do not form the desired rectangular grid. To form a rectangular

grid, the array is moved not only back and forth across the paper but is also scanned in a direction parallel to the paper movement. This movement causes a resultant Lissajous pattern. By pulsing the jets at predetermined intervals, a rectangular grid can now be obtained.

Volume 4 Number 1 January/February 1979 79

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