Shuttle type line printer

Details Shuttle type line printer Shuttle type line printer

1994-02-24

1995-03-28

Burr, Edgar S.

Typewriting machines

Carriage or carriage-moving or movement-regulating mechanism

Carriage-feed mechanism

400320, 400341, 101 9308, B41J 25304

Patent

active

054011094

ABSTRACT:
A mounting bed integral with a hammer bank is disposed parallel to a counter balancer composed of a counter balancer constituting member and a yoke. The mounting bed and the yoke are provided with solenoid coils opposed to a permanent magnet provided on the frame, and a pair of bearings are arranged between the mounting bed and the counter balancer constituting member. A position sensor for the mounting bed and the counter balancer is provided. A controller is provided to control a current and direction of the solenoid coil by a detection signal from the position sensor. The mounting bed integral with the hammer bank and the counter balancer are shuttle-operated in opposite directions by the controller.

REFERENCES:
patent: 4749294 (1988-06-01), Barrus et al.
patent: 4854756 (1989-08-01), McCrimmon, Jr. et al.
patent: 4889438 (1989-12-01), Forsyth et al.
patent: 4921365 (1990-05-01), Sanders, Jr. et al.

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