Printer having flux regulator

Details Printer having flux regulator Printer having flux regulator

1985-10-31

1988-04-05

Sewell, Paul T.

Typewriting machines

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

Imprint by movement of record-medium against type-face

101 9303, 400166, 361152, B41J 938

Patent

active

047355174

ABSTRACT:
An impact printer has a flux regulator for each of the coils in its printhead. Each regulator provides a reference voltage indicative of the desired flux in the associated coil. A circuit is provided for measuring the flux in the coil and for providing a voltage representative thereof. The measured flux representation is compared with the reference flux representation and any difference is applied to a power circuit which then provides more or less power to the associated coil.

REFERENCES:
patent: 3909687 (1975-09-01), Abbondanti
patent: 4041361 (1977-08-01), Cornell
patent: 4273039 (1981-06-01), Luo
patent: 4445080 (1984-04-01), Curtiss
patent: 4450427 (1984-05-01), Gareis
patent: 4548522 (1985-10-01), Harada

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