US PATENT SUBCLASS 399 / 91
INTERNAL MACHINE ENVIRONMENT


Current as of: June, 1999
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399 /   HD   ELECTROPHOTOGRAPHY

91INTERNAL MACHINE ENVIRONMENT {4}
92  DF  .~> Forced air circulation {1}
94  DF  .~> Temperature {2}
97  DF  .~> Humidity
98  DF  .~> Particle or contaminant control {2}


DEFINITION

Classification: 399/91

INTERNAL MACHINE ENVIRONMENT:

(under the class definition) Subject matter wherein method or apparatus is provided that prevents or ameliorates adverse conditions of the machine interior atmosphere.

(1) Note. For example, adverse conditions include high or low temperature, vibration, noise, humidity, scattered toner, or contaminants.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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

33, for over-temperature protection during fixing.

38+, for control of the electrophotos:graphic processes (e.g., charging, exposure, developing, transferring, fixing, and cleaning).

67+, for condition-responsive control of fusing. 75+, for control of machine operations.

107+, for electrophotos:graphic device having particular structure.

122, for fixing unit with particular modular or displaceable structure.

127+, for supplemental electrophotos:graphic processes.

130+, for image formation, per se.

320+, for fixing (e.g., fusing), per se.

343+, for cleaning an imaging surface.

361+, for document handling.

SEE OR SEARCH CLASS

236, Automatic Temperature and Humidity Regulation, for humidity and temperature control, per se.

374, Thermal Measuring and Testing,

1+, for thermal calibration devices. OTHER CLASSIFICATION SYSTEMS:

ipc{2}G03G21/20, for humidity or temperature control.

jpofiG03G21/00 530, for internal apparatus environment control of the electros:graphic apparatus.

epcG03G21/20, for humidity or temperature control, also ozone evacuation; internal apparatus environment control.