Printing head

Details Printing head Printing head

1989-12-07

1990-12-18

Burr, Edgar S.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 223

Patent

active

049782380

ABSTRACT:
A printing head has an annular resilient plate on which to centripetally dispose driving arms, an electromagnetic driving device for driving printing wires by releasing deviated driving arms while exciting a demagnetizing coil, an annular stopper plate and an annular thin tabular stopper interposed between the stopper plate and the driving arms. Based on this construction flexures of the driving arms toward a platen can be prevented, thereby eliminating double printing or print skipping.

REFERENCES:
patent: 4225250 (1980-09-01), Wagner et al.
patent: 4433926 (1984-02-01), Isobe et al.
patent: 4591280 (1986-05-01), Bringhurst
patent: 4674896 (1987-06-01), Yasunaga et al.
patent: 4728205 (1988-03-01), Hasumi et al.

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