Thermal head having integral analog drive compensation

Details Thermal head having integral analog drive compensation Thermal head having integral analog drive compensation

1990-08-13

1992-06-09

Fuller, Benjamin R.

Recorders

Thermal recording

G01D 1510

Patent

active

051211351

ABSTRACT:
A thermal head including a substrate, a plurality of thermal resistance elements formed on the substrate corresponding to print dots, a driving device for applying pulse voltage to the thermal resistance elements corresponding to print data, a temperature sensor provided on the substrate for sensing the temperature of the substrate, and an analog controller provided on the substrate and receiving an output from the temperature sensor for controlling the pulse voltage, so as to unify the print characteristic of the thermal resistance elements.

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patent: 4704618 (1987-11-01), Gotoh et al.
patent: 4866508 (1989-09-01), Eichelberger et al.
C. Nelson, "Switching Controller Chip Handles 100 w from a 5-Pin Package", Dec. 1985, pp. 73-78, Electronic Design.

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