Apparatus for re-inking a ribbon in a thermal transfer printing

Details Apparatus for re-inking a ribbon in a thermal transfer printing Apparatus for re-inking a ribbon in a thermal transfer printing

1979-06-29

1981-03-03

Eickholt, E. H.

Typewriting machines

Including interposed inking device for record-medium

Renovation of used ribbon

400119, 4002411, 427141, 427 49, 118620, B41J 2712

Patent

active

042537754

ABSTRACT:
A doctor blade is used to apply a powdered toner to the depleted regions of a resistive thermal transfer ribbon. The ribbon is then moved adjacent a heating electrode that passes current through a resistive substrate of the ribbon so that a transverse line on the ribbon is heated and the added toner is fused in the depleted regions of the ribbon. The heated area of the ribbon is thereafter compressed by a cold roller to provide a uniform re-inked surface.

REFERENCES:
patent: 3377598 (1968-04-01), Borman
patent: 3413141 (1968-11-01), Friedman
patent: 3625334 (1971-12-01), Ahn
patent: 3681138 (1972-08-01), Ankenbrand et al.
patent: 3731649 (1973-05-01), Anderson et al.
patent: 3939800 (1976-02-01), Banker

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