Method for driving ink jet print head

Details Method for driving ink jet print head Method for driving ink jet print head

1993-04-12

1996-01-09

Wiecking, David A.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

40012404, 400323, 101 9304, B41J 2300

Patent

active

054832683

ABSTRACT:
A method for driving an ink jet print head is here disclosed which is characterized by comprising the steps of carrying out printing, while a print head (1) is moved one dot at a time by 4 dots of each nozzle (2) in the print head (1) in one print scanning direction in one print line on a print paper; further repeating the printing operation 4 times in the one direction in this print line; carrying out printing, while the print head (1) is moved one dot at a time by 4 dots in another print scanning direction; further repeating the printing operation 4 times in the other direction in this print line; and then terminating one reciprocating motion of the print head (1) in the print scanning direction at a point when the print head (1) has returned to a print motion starting point.
The method of the present invention permits preventing the disorder of print and the introduction of bubbles into the ink, decreasing cost, improving productivity, obtaining a high-quality print even by the use of a relatively low-density head, and smoothing a shuttle motion.

REFERENCES:
patent: 4380017 (1983-04-01), Ort
patent: 4401991 (1983-08-01), Martin
patent: 4622560 (1986-11-01), Withoos et al.
patent: 4889052 (1989-12-01), Matsumoto
patent: 4922271 (1990-05-01), Nilsson
patent: 5079571 (1992-01-01), Eriksen
IBM Technical Disclosure Bulletin, vol. 33, No. 10B, Mar. 1991, pp. 81-85.

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