US PATENT SUBCLASS 399 / 234
.~.~ Development prevention


Current as of: June, 1999
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399 /   HD   ELECTROPHOTOGRAPHY

130  DF  IMAGE FORMATION {30}
222  DF  .~ Development {5}
234.~.~ Development prevention {1}
235  DF  .~.~.~> Bias voltage


DEFINITION

Classification: 399/234

Development prevention:

(under subclass 222) Subject matter wherein means or method is provided for restraining the flow of toner to prevent unwanted development (e.g., nonimage areas).

(1) Note. This subject matter includes the prevention of applying toner on a photoconductive member and does not include using erase lights for limiting development of a latent image. For prevention of development by use of erase lights, see SEARCH THIS CLASS, SUBCLASS below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

98, for preventing deposition of airborne contaminant toner.

169, for preventing development by controlling the area to be charged.

186, for preventing development of part of the a latent image by using erase lights.

OTHER CLASSIFICATION SYSTEMS:

ipc{2}G03G15/08, for using solid developer, powder developer. jpofiG03G15/08 507H, for driving and stopping.