Typewriting machines – Including type-set-assemblage mounted on carrier and... – Type drum having multiple type-set-assemblages
Patent
1981-06-29
1983-11-22
Pieprz, William
Typewriting machines
Including type-set-assemblage mounted on carrier and...
Type drum having multiple type-set-assemblages
101 9317, 101 9321, 101 9337, 101 9336, 101 9319, 4001563, 4001633, 4001551, B41J 748
Patent
active
044165579
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 selecting mechanism includes two ratchet wheels. The teeth on one ratchet wheel correspond to the positioning of the characters in the first group of characters and the teeth on the other ratchet wheel correspond to the positioning of the characters in the second group of characters. The ratchet wheels are moveable between a first position in which the first set of teeth are operative and a second position where the second set of teeth are operative.
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Epson Corporation
Kabushiki Kaisha Suwa Seikosha
Pieprz William
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