Multicolor ribbon shifter with separate cams for the cassette an

Details Multicolor ribbon shifter with separate cams for the cassette an Multicolor ribbon shifter with separate cams for the cassette an

1986-10-31

1988-09-27

Wiecking, David A.

Typewriting machines

Including interposed inking device for record-medium

Including mechanism for shifting ribbon laterally at...

4002161, 400248, B41J 3514

Patent

active

047737778

ABSTRACT:
In a printer having a platen, a printhead carriage moving along the platen, the mounting of a multicolor band ribbon with ribbon case and of a ribbon guide is improved by pivoting one end of the ribbon casing to the frame, and one end of the guide to the carriage; two cams are mounted axially immobile on a shaft and against the ribbon case such that different portions of these cams depending upon the rotational position of the shaft determines the pivot position of the case to thereby place different color bands in between said print heads and said platen; the frame for the ribbon guide is held by another cam mounted for axial movement with said carriage but rotating with the shaft so that all cams rotate in synchronism.

REFERENCES:
patent: 3595362 (1971-07-01), Wolowitz
patent: 4568209 (1986-02-01), Zerillo

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