US PATENT SUBCLASS 399 / 290
.~.~.~ Powder cloud

Current as of: June, 1999
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399 /   HD   ELECTROPHOTOGRAPHY

130  DF  IMAGE FORMATION {30}
222  DF  .~ Development {5}
252  DF  .~.~ Dry development {10}
290.~.~.~ Powder cloud {1}
291  DF  .~.~.~.~> Having electrode

DEFINITION

Classification: 399/290

Powder cloud:

(under subclass 252) Subject matter wherein the development is by a nebulous mass of toner particles finely dispersed in a body of gas.

(1) Note. For example, this subject matter includes air suspension of toner.

OTHER CLASSIFICATION SYSTEMS:

ipc{2}G03G15/08, for using solid developer, powder developer.

epcG03G15/08D, in a powder cloud.