Print ribbon guide

Details Print ribbon guide Print ribbon guide

1988-12-13

1991-01-01

Wiecking, David A.

Typewriting machines

Including interposed inking device for record-medium

Means auxiliary to ribbon mechanism

B41J 3506

Patent

active

049813790

ABSTRACT:
A type writing ribbon guide device in a type writing appliance which comprises a pair of inner ribbon guides disposed adjacent to the type writing zone in the appliance and a pair of outer ribbon guides positioned outwardly from the inner ribbon guides and in which a type writing ribbon presents concave and convex curved shapes having different radius of curvature as the ribbon is guided along the outer and inner ribbon guides.

REFERENCES:
patent: 4110050 (1978-08-01), Wood et al.
patent: 4229112 (1980-10-01), Schaefer
patent: 4272201 (1981-06-01), Steger
patent: 4335857 (1982-06-01), Pfost et al.
patent: 4413920 (1983-11-01), Matthias et al.
patent: 4867589 (1989-09-01), Limberger et al.
W. P. Bakken; "Helically Grooved Ribbon Guide", IBM Technical Disclosure Bulletin; vol. 13, No. 8, p. 2229; Jan. 1971.

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