Print hammer solenoid conditioned single solenoid ribbon and tap

Details Print hammer solenoid conditioned single solenoid ribbon and tap Print hammer solenoid conditioned single solenoid ribbon and tap

1986-12-10

1988-05-10

Wiecking, David

Typewriting machines

Having typewriter-controlled reciprocable electromagnetic...

400185, 400212, 400214, 400225, 4006971, B41J 2334, B41J 2936

Patent

active

047431288

ABSTRACT:
A single solenoid is connected to a ribbon feed mechanism which is selectively operable either to feed a print ribbon or to lift and feed an error correction tape. A print hammer solenoid is operable to condition the ribbon feed mechanism either for feeding the print ribbon or lifting and feeding the error correction tape. To feed the print ribbon, an electronic circuit energizes the print hammer solenoid before energizing the ribbon feed solenoid in response to depressing a character key. To lift and feed the error correction tape, the electronic circuit energizes the print hammer solenoid after energizing the ribbon feed solenoid in response to depressing a correction key.

REFERENCES:
patent: 4390293 (1983-06-01), Gubau et al.
patent: 4407594 (1983-10-01), Link
patent: 4411542 (1983-10-01), Wenderoth
patent: 4609297 (1986-09-01), Hubner et al.

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