Print carriage positioning with normal and precision modes

Details Print carriage positioning with normal and precision modes Print carriage positioning with normal and precision modes

1992-09-08

1993-11-02

Wiecking, David A.

Typewriting machines

Carriage or carriage-moving or movement-regulating mechanism

For varying carriage feed

400279, 400322, B41J 1930

Patent

active

052578690

ABSTRACT:
In a typewriting apparatus in the invention, the carrier is driven by a stepping motor. Characters printed by this apparatus are divided into two groups, one for characters frequently used but requiring no higher printing position precision and the other for characters less frequently used but requiring higher printing position precision. Furthermore, each group can be printed in a normal printing mode or in a boldface printing mode. These four kinds of printing are executed by selecting their respective suitable pulse rates of the stepping motor.

REFERENCES:
patent: 4203678 (1980-05-01), Nordstrom
patent: 4388005 (1983-06-01), Wehking et al.
patent: 4688956 (1987-08-01), Miyake
patent: 4693618 (1987-09-01), Hanagata
patent: 4758104 (1988-07-01), Fujiwara
IBM Tech. Disc. Bulletin, vol. 28, No. 12, May 1986, pp. 5599-5600, 400-903.

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