Typewriting machines – Including interposed inking device for record-medium – Endless ribbon or cartridge therefor
Patent
1987-07-31
1988-11-08
Wright, Jr., Ernest T.
Typewriting machines
Including interposed inking device for record-medium
Endless ribbon or cartridge therefor
400208, B41J 32102
Patent
active
047831847
ABSTRACT:
A ribbon cassette for an endless ribbon comprises a first portion and a second portion of substantially identical structure and each portion includes a dam adjacent the exit port of the cassette. A ramp is formed adjacent each dam for centering the ribbon as it travels from the ribbon chamber between the ramps and the dams for providing improved tracking and control of the ribbon through the exit port.
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patent: 4616942 (1986-10-01), Nagasawa et al.
patent: 4645364 (1987-02-01), Ohsaki
IBM Technical Disclosure Bulletin, "Printer Ribbon Cassette", Brumbaugh et al, vol. 19, No. 8, Jan. 1977, pp. 2978-2979.
IBM Technical Disclosure Bulletin, "Ribbon Cartridge Exit Impedance", Dowd, vol. 20, No. 11B, Apr. 1978, pp. 4739-4740.
Santillo Joseph C.
Seybold James M.
Hawk Jr. Wilbert
Muckenthaler George J.
NCR Corporation
Sessler Jr. Albert L.
Wright, Jr. Ernest T.
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