Dot matrix print head

Details Dot matrix print head Dot matrix print head

1985-01-10

1985-08-13

Sewell, Paul T.

Printing

Selective or progressive

Bed and platen machines

400124, 400320, B41J 312

Patent

active

045342873

ABSTRACT:
Hammer actuators are mounted on a support. Instead of moving the entire massive support to traverse the paper for each line, only a low inertia member, which positions the impact ends of the print wires, is moved. The internal structure of the member facilitates minor curvature of the print wires as the member moves. The member is rapidly reciprocated relative to the support, but "dwells" for a short time at each extreme to permit indexing of the paper. Ehnanced graphic capability is possible because each print wire can print a plurality of dots for each line.

REFERENCES:
patent: 3802544 (1974-04-01), Howard et al.
patent: 3967714 (1976-07-01), Potma et al.
patent: 3973661 (1976-08-01), DeBoo et al.
patent: 4053040 (1977-10-01), McGourty
patent: 4077336 (1978-03-01), Talvard et al.
patent: 4349283 (1982-09-01), Sapitowicz

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