US PATENT SUBCLASS 399 / 237
.~.~ Liquid development

Current as of: June, 1999
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399 /   HD   ELECTROPHOTOGRAPHY

130  DF  IMAGE FORMATION {30}
222  DF  .~ Development {5}
237.~.~ Liquid development {8}
238  DF  .~.~.~> Having dispensing
239  DF  .~.~.~> Application member (e.g., roller, belt) {1}
241  DF  .~.~.~> Having electrode {4}
246  DF  .~.~.~> Sprayed {1}
248  DF  .~.~.~> Immersion
249  DF  .~.~.~> Removing excess developer (e.g., squeegee)
250  DF  .~.~.~> Liquid carrier condensation
251  DF  .~.~.~> Drying (e.g., warming, heating)

DEFINITION

Classification: 399/237

Liquid development:

(under subclass 222) Subject matter wherein a liquid developer is applied to render the latent image visible.

(1) Note. Liquid developer material (i.e., liquid toner) is usually toner particles mixed with a liquid carrier material.

(2) Note. The liquid carrier may be an insulator hydrocarbon liquid (e.g., kerosine).

(3) Note. This subject matter does not include dry toner of granular or particle type even though it may possess fluid properties. For dry toner, see SEARCH THIS CLASS, SUBCLASS in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

233, for liquid color development.

252+, for dry toner.

SEE OR SEARCH CLASS 118, Coating Apparatus, for coating, per se.

137, Fluid Handling, for fluid handling, per se.

141, Fluent Material Handling, With Receiver or Receiver Coacting Means, for fluid handling.

204, Chemistry: Electrical and Wave Energy,

302+, for separating liquids by direct application of electrolysis or electric force to the liquid.

210, Liquid Purification or Separation,

222+, for magnetic liquid separation, per se.

OTHER CLASSIFICATION SYSTEMS:

ipc{2}G03G15/10, for using a liquid developer.

jpofiG03G15/10 116, using a liquid developer for wetting the recording material.

epcG03G15/10, for using a liquid developer.