US PATENT SUBCLASS 347 / 192
.~.~ By variation in power supply

Current as of: June, 1999
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347 /   HD   INCREMENTAL PRINTING OF SYMBOLIC INFORMATION

171  DF  THERMAL MARKING APPARATUS OR PROCESSES {20}
188  DF  .~ Density control {7}
192.~.~ By variation in power supply

DEFINITION

Classification: 347/192

By variation in power supply:

(under subclass 188) Subject matter wherein the regulating means responds to changes in magnitude of the voltage supplied to the recording means for controlling the amount of heating energy.