US PATENT SUBCLASS 399 / 50
.~ Control of charging


Current as of: June, 1999
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399 /   HD   ELECTROPHOTOGRAPHY

38  DF  CONTROL OF ELECTROPHOTOGRAPHY PROCESS {15}
50.~ Control of charging


DEFINITION

Classification: 399/50

Control of charging:

(under subclass 38) Subject matter wherein a charge or potential level of a photoconductive member is adjusted in response to the sensed condition.

(1) Note. This subject matter is for the charging of a photoconductive member only. For other charging (e.g., charging of toner), see SEARCH THIS CLASS, SUBCLASS below.

(2) Note. This subject matter includes, for example, using light exposure to control the charge level.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88+, for machine operations with power supply.

100, for particle or contaminant control in removal of toner from a charging member (e.g., corona wire).

115, for charging unit having a modular or displaceable structure.

128+, for supplemental process (e.g., fatigue treatment) involving charging. 153, for simultaneous charging and exposure.

168+, for charging, per se.

296, for exposure or charging of a developed image prior to transfer.

SEE OR SEARCH CLASS

323, Electricity: Power Supply or Regulation Systems, for power supply, per se.

361, Electricity: Electrical Systems and Devices, for

212+, for means to discharge or prevent accumulation of static electric charge and subclasses 225+ for electric

charge generating or conducting means.

430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof, appropriate subclasses for radiation imagery chemistry, process, composition, or product, especially Cross-Reference Art Collection 902 for cross-reference art collections involving charging.

OTHER CLASSIFICATION SYSTEMS:

ipc{2}G03G15/02, for sensitizing (i.e., laying down a uniform charge).

jpofiG03G15/02 102, for arrangements for the control or the circuits. epcG03G15/02C, for an arrangement for controlling the amount of a charge.