Print wire driving apparatus

Details Print wire driving apparatus Print wire driving apparatus

1989-12-13

1992-09-22

Wiecking, David A.

Typewriting machines

Including type-set-assemblage mounted on carrier and...

Imprint by movement of record-medium against type-face

361152, B41J 938

Patent

active

051492148

ABSTRACT:
A print wire driving apparatus for use in a printer having a stabilized power source, a print wire, an urging coil for driving said print wire and a power source including a smoothing capacitor for energizing the urging coil is provided. An accumulating circuit accumulates electro-magnetic energy generated in the urging coil once the current supplied to the urging coil has been turned OFF. A feedback circuit feeds back energy from the accumulating circuit to the smoothing capacitor when the voltage of the accumulating circuit reaches a predetermined level. A regulating circuit maintains the voltage of the accumulating circuit so that the voltage does not fall below the predetermined level, thereby obtaining high power source efficiency and high speed operation of the print wire.

REFERENCES:
patent: 3488519 (1970-01-01), Vadrot
patent: 3560803 (1971-02-01), Shih
patent: 4027761 (1977-06-01), Quaif
patent: 4323944 (1982-04-01), Hill
patent: 4396304 (1983-08-01), Davenport
patent: 4454558 (1984-06-01), Haddart
patent: 4621299 (1986-11-01), Hill
patent: 4637742 (1987-01-01), Sakai
patent: 4661882 (1987-04-01), Gresley
patent: 4667117 (1987-05-01), Nebgen et al.
patent: 4679116 (1987-07-01), Oshizawa
patent: 4741636 (1988-05-01), Takahashi et al.
patent: 4835655 (1989-05-01), Ricci
patent: 4866564 (1989-09-01), Aoki
patent: 4868709 (1989-09-01), Aoki

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