Typewriting machines – Including interposed inking device for record-medium – Endless ribbon or cartridge therefor
Patent
1982-12-02
1985-01-15
Burr, Edgar S.
Typewriting machines
Including interposed inking device for record-medium
Endless ribbon or cartridge therefor
400224, 400208, 400202, 400195, B41J 3202, B41J 3116
Patent
active
044935722
ABSTRACT:
A long-life inking cassette is provided wherein an inkable ribbon is pumped into a ribbon storage zone by a pair of textured nip rollers. The ribbon is drawn from storage, rotated 180.degree., re-inked, and passed at an angle and under tension past a print head before being returned to the nip rollers. A pair of dams are positioned to contact opposed edges of the ribbon as the ribbon leaves the storage zone to prevent folds of the ink ribbon from passing outwardly from the storage zone. Means are provided to amplify the drag on the ribbon between a dispensing pin at the outlet of the storage zone and an end of a first leg of the cassette. The drag amplification causes the ribbon to be taut when drawn past the printhead.
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Clair Robert A.
Crandall Stanley C.
Pawlenko Ivan
Reider Donald F.
Troebs Charles J.
Avery International Corp.
Burr Edgar S.
Hirabayashi M. J.
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