Printer with multiple type groups

Details Printer with multiple type groups Printer with multiple type groups

1984-01-30

1985-12-24

Sewell, Paul T.

Typewriting machines

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

Including type-faces movable relative to type-face-carrier

400146, 400620, 101 9314, 101 9317, B41J 120, B41J 1100

Patent

active

045602948

ABSTRACT:
A printer comprises paper feed means for feeding a sheet of print paper in a prescribed direction, a plurality of type groups arranged in tiers along the prescribed direction and each having a set of types, a hammer assembly shiftable across the tiers of the type groups for pressing a selected one of the types against the sheet of print paper, means for shifting the hammer assembly across the tiers of the type groups, an arithmetic unit for computing a next amount of feed of the sheet of print paper based on a position of the selected type with reference to a direction across the tiers of the type groups, and paper feed control means for controlling the paper feed means to feed the sheet of print paper and the shifting means to shift the hammer assembly in relation to each other for intervals of time controlled on the basis of the amount of feed of the sheet of print paper as computed by the arithmetic unit.

REFERENCES:
patent: 3115092 (1963-12-01), Sasaki
patent: 3133497 (1964-05-01), Martin
patent: 3611412 (1971-10-01), Gibby
patent: 3844395 (1974-10-01), Mero et al.
patent: 4043440 (1977-08-01), Busch
patent: 4075945 (1978-02-01), Bienholz
patent: 4443123 (1984-04-01), Ono et al.
patent: 4455936 (1984-06-01), Hori

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