Serial printer

Details Serial printer Serial printer

1983-05-31

1985-04-23

Pieprz, William

Typewriting machines

Carriage or carriage-moving or movement-regulating mechanism

Carriage-feed mechanism

400320, 4003326, 4003343, 101 9315, B41J 1968

Patent

active

045126755

ABSTRACT:
A serial printer suitable for use in desk-top calculators or the like. The serial printer has a rotary shaft rotatable together with two type wheels. The power supply to the rotary shaft is made by a motor which operates continuously only in one rotational direction through a first clutch. A second clutch is provided to make a selective power transmission between the rotary shaft and the member for actuating the hammer, as well as the member for causing the carrying operation. The states of the first and the second clutches are controlled by a change-over arm which in accordance with the operation instruction given by an operation instruction coil, such that these clutches are alternatingly turned on and off to make various operations such as printing, column shift, paper feeding and so forth.

REFERENCES:
patent: 2375541 (1945-05-01), Dirkes et al.
patent: 2984328 (1961-05-01), Lambert
patent: 3628645 (1971-12-01), McFeaters et al.
patent: 3739899 (1973-06-01), Brumbaugh et al.
patent: 3924725 (1975-12-01), Kuhn et al.
patent: 3972280 (1976-08-01), Swatik et al.
patent: 4218151 (1980-08-01), Kondur, Jr.
patent: 4244291 (1981-01-01), Kodaira et al.
patent: 4310256 (1982-01-01), Inoue
patent: 4383773 (1983-05-01), Arai

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