Recorders – Thermal recording
Patent
1990-10-17
1993-06-15
Fuller, Benjamin R.
Recorders
Thermal recording
219216, B41J 2375
Patent
active
052203492
ABSTRACT:
A method and apparatus are applicable to a thermal recording system which records data in a recording medium using a heat generated by applying a power to a resistor. According to the invention the resistor itself or a monitor, which is disposed in the path of electric current applied to the resistor, is made of a material having the metallic
on-metallic phase transition characteristics at predetermined temperature, whereby the resistor or the monitor can have a function to interrupt the electric current at the predetermined temperature so that the peak temperature of the resistor s controlled constantly regardless of the value or period of the applied voltage. Further, it achieves a uniform recording property and a stable continuous tone recording property by controlling the period for holding the peak temperature of the resistor.
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Kuwahara Seiji
Saita Yoshiaki
Sato Yoshinori
Adams Bruce L.
Fuller Benjamin R.
Le N.
Seiko Instruments Inc.
Wilks Van C.
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