US PATENT SUBCLASS 347 / 114
.~.~ Electrothermographic

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

111  DF  ELECTRIC MARKING APPARATUS OR PROCESSES {3}
112  DF  .~ Electrostatic {8}
114.~.~ Electrothermographic

DEFINITION

Classification: 347/114

Electrothermos:graphic:

(under subclass 112) Subject matter wherein a thermal marker

is used to either charge, or discharge, the medium in imagewise configuration in accordance with the information signal representing the image.

(1) Note. This subclass is distinguished from subclasses 171+ due to an electrostatic latent image formed by the marker.

(2) Note. The use of heat to create visible image by plastic deformation of a charged medium is classified in subclass 113.

SEE OR SEARCH THIS CLASS, SUBCLASS:

200+, for details of a thermal head used in thermal marking apparatus.