Serial printer

Details Serial printer Serial printer

Filed on

1981-06-29

Date issued

1983-05-17

Examiner

Sewell, Paul T.

Patent Class

Typewriting machines

SubClass

Including type-set-assemblage mounted on carrier and...

SubSubClass

Imprint by movement of record-medium against type-face

Other Related Categories

101 9317, 400154, 4001551, B41J 906

Type

Patent

Status

active

Patent number

043837735

Description

ABSTRACT:
A serial printer for use in portable electronic calculators and the like. The printer includes a single printing head having a plurality of characters divided into two groups circumferentially disposed therearound in a predetermined pattern. A first selecting mechanism selects one of the two groups of characters. A second selecting mechanism selects the particular character in the group selected by the first selecting mechanism which is to be printed on a printing tape. The first selecting mechanism may include a helical gear mechanism which selects between the two groups of characters.

REFERENCES:
patent: 215251 (1879-05-01), Slocum
patent: 2831424 (1958-04-01), MacDonald
patent: 2909995 (1959-10-01), Hannibal
patent: 2949846 (1960-08-01), Hoffman et al.
patent: 3742845 (1973-07-01), Giani
patent: 3908809 (1975-09-01), Beattie
patent: 3924725 (1975-12-01), Kuhn
patent: 3987884 (1976-10-01), Buxton
patent: 4043439 (1977-08-01), Daly

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