US PATENT SUBCLASS 399 / 9
DIAGNOSTICS

Current as of: June, 1999
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399 /   HD   ELECTROPHOTOGRAPHY

9DIAGNOSTICS {13}
10  DF  .~> Log report
11  DF  .~> Service mode
12  DF  .~> Unit or part identification
13  DF  .~> Component present or mounted
14  DF  .~> Unacceptable copy coverage
15  DF  .~> By inspection of copied image
16  DF  .~> Document handling {4}
24  DF  .~> Consumable {3}
31  DF  .~> Image forming component {1}
33  DF  .~> Fixing (e.g., over-temperature protection)
34  DF  .~> Cleaning {1}
36  DF  .~> Of motive power or driven unit
37  DF  .~> Power supply

DEFINITION

Classification: 399/9

DIAGNOSTICS:

(under the class definition) Subject matter wherein a means or method is provided for detecting or analyzing (a) a condition that is outside the normal operating condition or (b) a malfunction or potential malfunction of an electrophotos:graphic device or component thereof.

(1) Note. For example, this subject matter may include detection of an access door not being closed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

8, for remote monitoring of an electrophotos:graphic device.

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

75+, for control of machine operations.

91+, for internal machine environmental control.

107+, for an electrophotos:graphic device having particular structure. 127+, for supplemental electrophotos:graphic processes.

130+, for image formation, per se.

343+, for cleaning an imaging surface.

361+, for document handling.

SEE OR SEARCH CLASS

73, Measuring and Testing,

1.01+, for generic instrument calibration devices and methods.

324, Electricity: Measuring and Testing,

452+, for testing a material property using electrostatic phenomenon (this type of test may be employed to determine the humidity or electrical insulating properties of copy paper, a photosensitive material, etc.) and subclasses 457+ which employ means to measure an electrostatic field, such a field being an integral property of the electrophotos:graphic process.

356, Optics: Measuring and Testing,

445+, for testing the reflectivity of the copy paper, for example, to determine proper exposure, toner concentration, etc. 374, Thermal Measuring and Testing,

1+, for thermal calibration devices.

377, Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems,

28+, for diagnostic testing of counters.

714, Error Detection/Correction and Fault Detection/Recovery,

1+, for generic diagnostic testing involving data processing.

OTHER CLASSIFICATION SYSTEMS:

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

jpofiG03G21/00 386, for displaying and alarming. G03G21/00 388, for control of electros:graphic apparatus. G03G21/00 500, for special measures to malfunction. G03G21/00 520, for a safety device of electros:graphic apparatus.

epcG03G15/00D, for self-diagnostics, malfunction, and lifetime display.