Printer, provided with an impact device comprising a transducer

Details Printer, provided with an impact device comprising a transducer Printer, provided with an impact device comprising a transducer

1978-01-25

1980-03-11

Coven, Edward M.

Printing

Selective or progressive

Bed and platen machines

4001442, 101 9329, 400124, 4001573, B41J 792

Patent

active

041922301

ABSTRACT:
A printer comprising an impact device which is provided with an impact member which is electromechanically driven and whose position or speed is measured by means of a transducer in order to obtain a speed signal which is compared with a reference signal in a comparator. The signal output of the comparator is connected to a signal input of an electrical actuation device for driving the impact member, the actuation of the drive being terminated only after a stop signal has appeared on the signal output of the comparator. An adapted speed of the impact member is obtained in all circumstances in a printer in accordance with the invention.

REFERENCES:
patent: 3909681 (1975-09-01), Campari et al.
patent: 3919934 (1975-11-01), Beery
patent: 4027761 (1977-06-01), Quaif
patent: 4062285 (1977-12-01), Deetz et al.
patent: 4147438 (1979-04-01), Sandrone et al.
Mills et al., IBM Technical Discl. Bulletin, vol. 15, No. 8, Jan. 1973, p. 2365.

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