US PATENT SUBCLASS 399 / 38
CONTROL OF ELECTROPHOTOGRAPHY PROCESS

Current as of: June, 1999
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399 /   HD   ELECTROPHOTOGRAPHY

38CONTROL OF ELECTROPHOTOGRAPHY PROCESS {15}
39  DF  .~> Color balance {2}
42  DF  .~> Artificial intelligence
43  DF  .~> Responsive to number of copies or passage of time
44  DF  .~> Having temperature or humidity detection
45  DF  .~> Responsive to copy media characteristic
46  DF  .~> Of plural processes {3}
50  DF  .~> Control of charging
51  DF  .~> Control of exposure {1}
53  DF  .~> Control of developing {4}
66  DF  .~> Control of transfer
67  DF  .~> Control of fixing {2}
71  DF  .~> Control of cleaning
72  DF  .~> Forming test image
73  DF  .~> Electrometer detail
74  DF  .~> Densitometer detail

DEFINITION

Classification: 399/38

CONTROL OF ELECTROPHOTOGRAPHY PROCESS:

(under the class definition) Subject matter wherein a means or method is provided that senses a condition or change of condition and effects an image-forming operation of an electrophotography process (e.g., charging, exposing, developing, transfer, fixing, or cleaning), component, or device in response to the sensed or changed condition.

(1) Note. For example, this subject matter includes the following controlling arrangements: control of ion modulation, forming a new latent image for plural developing or transferring in response to voltage detection, control of treatment of developed image prior to transfer, reformation of latent image for producing multiple copies, and enablement of image formation in response to detection of charge,

exposure, or concentration. For other controlling arrangements within the electrophotos:graphic apparatus which do not involve the electrophotos:graphic process, see SEARCH THIS CLASS, SUBCLASS in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9+, for diagnostics of an electrophotos:graphic device.

75+, for control of machine operations.

92, for controlling a cooling fan in response to sensed temperature.

107+, for electrophotos:graphic device having particular structure. 128, for condition responsive control of fatigue treatment (e.g., supplemental charge or exposure).

130+, for image formation, per se.

187, for condition responsive control of erase light.

343+, for cleaning an imaging surface.

361+, for control of an automatic document feeder in response to detection of original.

OTHER CLASSIFICATION SYSTEMS:

ipc{2}G03G15/00, for an electros:graphic process using a charge pattern.

jpofiG03G15/00 303, for image quality control.

epcG03G15/00C6, for measuring the copy material characteristics (e.g., weight, thickness). G03G15/00C7, for measuring the photoconductor characteristics (e.g., temperature, a test patch).