Printing head with current passing through the print wire

Details Printing head with current passing through the print wire Printing head with current passing through the print wire

1987-08-18

1989-08-22

Wiecking, David A.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 312

Patent

active

048590959

ABSTRACT:
In a printing head, an actuator pin positioned within a magnetic field is bent to form at least one V-shaped portion and is fixed at the end portion thereof. When current flows in the actuator pin during printing, the actuator pin is caused to be expanded and contracted by an electromagnetic force to thereby print a dot. A plurality of guide grooves are formed on both side faces of a conductive common guide plate. The end portion of the actuator pin is fixed at the guide groove in an insulating condition, and the tip of the actuator pin is movably fitted in the guide groove in an electrically conductive state.

REFERENCES:
patent: 4501506 (1985-02-01), Weeks et al.
patent: 4600322 (1986-07-01), Vermot-Gand et al.

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