Thermal transfer recording medium

Details Thermal transfer recording medium Thermal transfer recording medium

1985-03-28

1986-07-29

Evans, Art

Recorders

Thermal recording

346105, 400120, G01D 1510

Patent

active

046033378

ABSTRACT:
A thermal transfer ribbon including a resistive heating element layer having a thermally transferable ink layer on the front side thereof is provided with a thermally sensitive indicator layer on the back side thereof. Heat generated in the resistive layer fuses the ink which transfers selectively to record grey scale image defining dots of various sizes on an ink receiving sheet in contact with the ink layer. The heat generated in the resistive layer also flows to the indicator layer to form corresponding indicator marks which are proportional to the recorded dots. The indicator marks are visible on the back side of the ribbon and are optionally monitored to provide feed back to a thermal system for accurately controlling the density of pixel area defining the recorded image.

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"Thermal Transfer Printer Employing Special Ribbons Heated with Current Pulses", IBM Technical Disclosure Bulletin, vol. 18, No. 8, 1/76 p. 2695.
"Electro-Thermosensitive Recording Sheets" by W. Shimotsuma et al, Tappi, 10/76 vol. 59, No. 10, pp. 92 and 93.

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