Print control device for a dot matrix printer

Details Print control device for a dot matrix printer Print control device for a dot matrix printer

1985-05-20

1987-12-22

Sewell, Paul T.

Typewriting machines

Carriage or carriage-moving or movement-regulating mechanism

Carriage-feed mechanism

400120, 400328, 307 41, 318139, 318672, B41J 1930

Patent

active

047143630

ABSTRACT:
A print control device for use with a portable battery powered dot matrix printer has a DC motor which moves a carriage with a dot generating mechanism and is provided with a shaft position signal generator. A control circuit responds to the anglular position of the drive motor to establish a print cycle in which the DC motor and the dot generating mechanism are driven in alternation so as to minimize the rate of power consumption.

REFERENCES:
patent: 4011491 (1977-03-01), Grover
patent: 4037145 (1977-07-01), Bailey
patent: 4113391 (1978-09-01), Minowa
patent: 4213714 (1980-07-01), Jones
patent: 4225251 (1980-09-01), Klimek
patent: 4409600 (1983-10-01), Minowa
patent: 4459050 (1984-07-01), Goldberg
patent: 4510505 (1985-04-01), Fukui
patent: 4560992 (1985-12-01), Hayashi
IBM Tech. Disc. Bulletin, by P. Short, vol. 23, No. 11, Apr., 1981, pp. 5000-5001, 400-322.

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