Printing apparatus for cash register

Details Printing apparatus for cash register Printing apparatus for cash register

1975-02-11

1977-04-19

Coven, Edward M.

Printing

Selective or progressive

Bed and platen machines

101 99, 101 9335, 101287, B41J 902

Patent

active

040181545

ABSTRACT:
Printing apparatus particularly suited to a cash register includes a hammer arranged to move printing paper into engagement with type wheels located on the other side of the paper. A cam and linkage move the hammer into and out of contact with the paper. Strong springs are provided to rapidly accelerate the hammer toward the paper through an engaging plate. The engaging plate is stopped before the hammer contacts the paper, and the hammer strikes the paper due to its inertia. The hammer rebounds off the paper and is caught and held by the linkage in the rebound position between the paper and the engaging plate to prevent double printing.

REFERENCES:
patent: 2353057 (1944-07-01), Mills
patent: 2616366 (1952-11-01), Eickman
patent: 2625100 (1953-01-01), William et al.
patent: 2821135 (1958-01-01), Larrabee
patent: 3601204 (1971-08-01), Denley
patent: 3616994 (1971-11-01), Watanabe et al.
patent: 3874287 (1975-04-01), Aldea

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