Typewriting machines – Including interposed inking device for record-medium – Endless ribbon or cartridge therefor
Patent
1986-10-09
1991-01-29
Wiecking, David A.
Typewriting machines
Including interposed inking device for record-medium
Endless ribbon or cartridge therefor
400195, B41J 3202
Patent
active
049882244
ABSTRACT:
A ribbon movement controlling cartridge includes a smudge guard/ribbon guide which contains exposed ribbon in a fixed stationary position during cartridge transportation and storage. When the guide is engaged with a printhead, it releases ribbon passage therethrough and acts as a smudge guard/ribbon guide during normal cartridge usage. A Mobius loop forming structure (along a first path for fabric ribbons) includes a central aperture therethrough so as to alternately permit direct non-inverting ribbon passage through the same structure along a second path intersecting the first path, for carbon film-type ribbons. A limited usage metering and self-stopping mechanism insures against over-extended usage of the cartridge. A unique key locking tab arrangement permits a proper cartridge to be positively engaged with a printer while also permitting easy disengagement for cartridge removal and replacement.
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Furrow Edward D.
Johenning, II Leon C.
Bennett C. A.
Genicom Corporation
Wiecking David A.
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