US PATENT SUBCLASS 399 / 333
.~.~.~.~ Composition or layers

Current as of: June, 1999
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399 /   HD   ELECTROPHOTOGRAPHY

130  DF  IMAGE FORMATION {30}
320  DF  .~ Fixing (e.g., fusing) {9}
328  DF  .~.~ By heat and pressure {2}
330  DF  .~.~.~ Heated roller {3}
333.~.~.~.~ Composition or layers

DEFINITION

Classification: 399/333

Composition or layers:

(under subclass 330) Subject matter wherein the heat or pressure member has a specific construction or surface property.

OTHER CLASSIFICATION SYSTEMS:

ipc{2}G03G15/20, for fixing (e.g., by using heat).

jpofiG03G15/20 103, for structure of the roller, manufacturing thereof.

epcG03G15/20H2D1, for relating to the chemical composition of the roller layers (compositions usable for both fixing and pressure rollers).