Ink ribbon cassette with re-inking and drive gear

Details Ink ribbon cassette with re-inking and drive gear Ink ribbon cassette with re-inking and drive gear

1991-11-27

1993-05-18

Burr, Edgar S.

Typewriting machines

Including interposed inking device for record-medium

Renovation of used ribbon

4002351, B41J 2712

Patent

active

052114902

ABSTRACT:
An inked ribbon cassette comprising an ink supply felt, a first gear arranged in contact with the felt and a second gear in engagement with the first gear. An ink ribbon is pinched between the first and the second gears and driven by the first and the second gears upon rotation thereof. Accordingly, ink is transferred from the felt to the first gear, and in turn, from the first gear to the ink ribbon. There are grooves in the first gear for containing ink therein ink is excessively transferred from the ink supply felt to the first gear. The grooves are preferably provided in bottom lands of the first gear by increasing the whole depth of the first gear.

REFERENCES:
patent: 4343556 (1982-08-01), Kobayashi
patent: 4616942 (1986-10-01), Nagasawa et al.
patent: 4747711 (1988-05-01), Motta et al.
patent: 4747713 (1988-05-01), Kikuchi et al.

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