Bi-directional drive print wire actuator with forward-velocity a

Details Bi-directional drive print wire actuator with forward-velocity a Bi-directional drive print wire actuator with forward-velocity a

1983-07-25

1985-06-18

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9302, 101 9305, 400167, B41J 312, B41J 942

Patent

active

045238677

ABSTRACT:
The present invention provides a bi-directional drive printer actuator with position feedback control and methods of operation to optimize the performance of impact type printers. By monitoring the position of the print wire, a forward input power pulse can be varied as to magnitude and duration to maintain a desired predetermined velocity of the print wire up until the time of impact. Further, by monitoring position feedback signals generated as the print wire returns to an at-rest position, a reverse input power pulse and forward input power pulse can be modulated for magnitude and duration to maintain a desired rearward velocity of the print wire, and bring the print wire to an at-rest position with a minimum of rebound off a back stop.

REFERENCES:
patent: 3755700 (1973-08-01), Buschmann et al.
patent: 3900094 (1975-08-01), Larsen et al.
patent: 3994382 (1976-11-01), McIntosh
patent: 4062285 (1977-12-01), Deetz et al.
patent: 4192230 (1980-03-01), Blom et al.
patent: 4200401 (1980-04-01), Roy et al.
patent: 4211496 (1980-07-01), Naylor
patent: 4218148 (1980-08-01), Matschke
IBM Tech. Disc. Bulletin., by W. T. Pimbley, vol. 21, No. 6, Nov. 1978, pp. 2283-2284.

Affiliated with

Also associated with

Rating

Bi-directional drive print wire actuator with forward-velocity a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bi-directional drive print wire actuator with forward-velocity a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bi-directional drive print wire actuator with forward-velocity a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-978158