Method for correcting bidirectional printing alignment of a seri

Details Method for correcting bidirectional printing alignment of a seri Method for correcting bidirectional printing alignment of a seri

1987-10-02

1989-04-04

Sewell, Paul T.

Typewriting machines

Carriage or carriage-moving or movement-regulating mechanism

Carriage-feed mechanism

400 53, 400303, 400121, B41J 1930

Patent

active

048181293

ABSTRACT:
In a method for operating a serial dot matrix printer having a print head that is reciprocated along a first direction and stopped for performing bi-directional printing on a medium that is moved in a second direction orthogonal to the first direction, correction amounts for correcting the bi-directional printing alignment are stored in a memory device. The desire correction amount is then selected and stored in a battery-backed-up memory. The bi-directional printing then is performed using the desired correction amount stored in the battery-backed-up memory.

REFERENCES:
patent: 4051945 (1977-10-01), Fujimoto
patent: 4210404 (1980-07-01), Hanger
patent: 4460968 (1984-07-01), Cavill et al.
patent: 4517503 (1985-05-01), Lin et al.
Patent Abstracts of Japan, unexamined applications, field M, vol. 6, No. 167, Aug. 31, 1982, p. 145 M 153 * Kokai-no. 57-82 071 (Tokyo Shibaura Denki) * (Abstract only).

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