Matrix line printer

Details Matrix line printer Matrix line printer

1983-07-18

1988-12-27

Wiecking, David A.

Printing

Selective or progressive

Bed and platen machines

400124, B41J 310

Patent

active

047932520

ABSTRACT:
A carrier frame is provided for oscillation along a printing platen of the printer and is comprised of two integral, U-shaped sections facing each other at right angles. A plurality of electromagnetic actuators are arranged in one section and include a yoke, a coil, and a pivot armature in each instance. A free end of the pivot armature projects into the other small section. A relatively short print needle is guided in one wall portion of the second section and has its rear end abutment with the projecting end of the armature; an adjusting screw adjusts the relative disposition of the pin-like needle and the armature; the common pivot axis for all armatures is established by a resilient string in a cover plate across the larger U.

REFERENCES:
patent: 4077505 (1978-03-01), Giolitti et al.
patent: 4230038 (1980-10-01), Hebert
patent: 4260270 (1981-04-01), Cavallan
patent: 4320981 (1982-03-01), Harrison et al.
patent: 4335969 (1982-06-01), Ott
patent: 4351235 (1982-09-01), Bringhurst
patent: 4382701 (1983-05-01), Davenport
patent: 4401392 (1983-08-01), Blomquist et al.
patent: 4441828 (1984-04-01), Ochiai et al.
IBM Tech. Disc. Bulletin, "Matrix Printer", Barrekette et al., vol. 20, No. 1, Jun. 1977, pp. 438-439.

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