Color thermal transfer recording system and ribbon

Details Color thermal transfer recording system and ribbon Color thermal transfer recording system and ribbon

1985-05-24

1986-12-16

Evans, Arthur G.

Recorders

Thermal recording

346105, 400120, G01D 1510

Patent

active

046300694

ABSTRACT:
A closed loop thermal transfer recording system and color transfer ribbon having a plurality of different color ink stripes thereon are provided for recording a color tonal image on a recording sheet. Precise control over the size of dots formed by ink transfer is achieved by monitoring the density of a thermally sensitive indicator layer on the back side of the ribbon which provides, for each different ink color, indicator marks that are proportional to recorded pixel density, and feeding this information back to a control system which compares monitored density with desired density and regulates heat input to the ribbon accordingly.

REFERENCES:
patent: 3726212 (1973-04-01), Combs
patent: 4195937 (1980-04-01), Baran
patent: 4250511 (1981-02-01), Stein et al.
patent: 4458253 (1984-07-01), Goff, Jr. et al.

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