Ribbon cassette with end of ribbon detector

Details Ribbon cassette with end of ribbon detector Ribbon cassette with end of ribbon detector

1987-01-09

1987-12-01

Pearson, Charles

Typewriting machines

Including interposed inking device for record-medium

Package for ribbon facilitating mounting of ribbon on...

4002191, 400234, 400249, B41J 3200, B41J 3536

Patent

active

047100443

ABSTRACT:
A ribbon cassette for typewriters is provided with an end-of-ribbon signaling device which takes the form of a switch comprising a contact web on a ribbon tensioning lever associated with the supply spool in the ribbon cassette and two contact pins provided in the machine. The contact web is adapted to bridge the contact pins signaling end of ribbon when the ribbon supply is used up.

REFERENCES:
patent: 4421959 (1983-12-01), Chen et al.
patent: 4616117 (1986-10-01), Kleine

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