Quiet impact printer

Details Quiet impact printer Quiet impact printer

1985-07-02

1987-07-21

Pieprz, William

Typewriting machines

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

Imprint by movement of record-medium against type-face

4001442, 400166, 400389, 400392, 101 9348, B41J 936

Patent

active

046814698

ABSTRACT:
An improved serial impact printer designed to substantially reduce impact noise generation during the printing operation. The printer includes a print tip exhibiting high effective mass relatively movable with respect to a deformable platen, with a print element, a marking ribbon and an image receptor sheet interposed between the print tip and the platen which are urged together during a controlled contact period of extended length.

REFERENCES:
patent: 1864521 (1932-06-01), Alti
patent: 1969274 (1934-08-01), Nemcovsky
patent: 2139700 (1938-12-01), Slavin
patent: 3139820 (1964-07-01), Kiltler
patent: 3601204 (1971-08-01), Denley
patent: 3704667 (1972-12-01), Moss
patent: 4203675 (1980-05-01), Osmera et al.
patent: 4308794 (1982-01-01), Adamoli et al.
patent: 4332489 (1982-06-01), Dollenmayer
patent: 4457637 (1984-07-01), Willcox
Dollenmayer et al., "Printer Hammer . . . Control" IBM Technical Disclosure Bulletin vol. 20, No. 8, pp. 3057-3061, Jan. 79.

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