Dot printer

Details Dot printer Dot printer

1980-12-24

1983-02-15

Sewell, Paul T.

Printing

Selective or progressive

Bed and platen machines

400121, B41J 312

Patent

active

043734383

ABSTRACT:
A rounded end on a pivoted arm impacts a print medium through an ink ribbon to form a printed dot on the print medium. For printing, a wire drawn by an electromagnet acts on the arm between the pivot axis and the rounded end. A plurality of arms and electromagnets are spaced apart along a lateral row and mounted on a carriage for reciprocal lateral translation over a distance approximating the space between arms to print an entire horizontal row of dots forming a portion of a character line. Arms are driven separately or in combinations. The gap in the electromagnet is simply fixed to reduce power requirements.

REFERENCES:
patent: 3934695 (1976-01-01), Kovalick
patent: 4077505 (1978-03-01), Giolitti et al.
patent: 4137513 (1979-01-01), Reece
patent: 4285603 (1981-08-01), Bernardis et al.

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