Dot matrix printer

Details Dot matrix printer Dot matrix printer

1981-05-07

1982-11-23

Sewell, Paul T.

Printing

Selective or progressive

Bed and platen machines

101 9309, B41J 312

Patent

active

043599370

ABSTRACT:
A dot matrix printer is provided which has a row of hammer elements having horizontal impactor bars aligned at upper and lower levels and in partial overlapping relation with adjacent impactor bars. A row of print elements is also provided which alternately have horizontal upper and lower level non-overlapping impact receiving bars positioned opposite the hammer elements and in alignment with corresponding upper and lower impactor bars. Each print element has a dot print element on its opposite side and the row of print elements is mounted on a reciprocating shuttle. Means are provided for actuating the hammer elements whereby selected hammer impactor bars will impact the impact receiving bars to effect transverse deflection of the print elements to form dot impressions on a print medium.

REFERENCES:
patent: 3698529 (1972-10-01), Cattaneo
patent: 3701995 (1972-10-01), Staller
patent: 3715978 (1973-02-01), Raider
patent: 3719139 (1973-03-01), Niccolai
patent: 3773161 (1973-11-01), Bossi
patent: 4218149 (1980-08-01), Okada
patent: 4278019 (1981-07-01), Meier
U.S. patent application "Actuator Mechanism for a Printer Or The Like", filed 11/17/80, Ser. No. 207,503.

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