Ribbon tension and metering control

Details Ribbon tension and metering control Ribbon tension and metering control

1981-06-22

1983-02-15

Sewell, Paul T.

Typewriting machines

Including interposed inking device for record-medium

Ribbon-feeding mechanism

400208, 242 7543, 226195, B41J 3352

Patent

active

043738249

ABSTRACT:
Ribbon feed from a ribbon supply spool is controlled in an incrementing ribbon feed system by a pawl and ratchet brake device actuated by ribbon tension. The mechanism utilizes a single-band spring member to control ribbon tension and ribbon metering.

REFERENCES:
patent: 3349887 (1967-10-01), Goff, Jr.
patent: 3442366 (1969-05-01), Spears
patent: 3731781 (1973-05-01), Caudill et al.
patent: 3877561 (1975-04-01), Guerrini et al.
patent: 4010839 (1977-03-01), Guerrini et al.
patent: 4022401 (1977-05-01), Kishi
patent: 4074799 (1978-02-01), Hishida et al.
IBM Technical Disclosure Bulletin, vol. 18, No. 4, Sep. 1975, "Ribbon Drag Wire", E. J. Lenney p. 1093.
IBM Technical Disclosure Bulletin, vol. 23, No. 5, Oct. 1980, "Constant-Tension Ribbon Cartridge", pp. 1741-1742.

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