Failure diagnosis method, failure diagnosis apparatus, image...

Details Failure diagnosis method, failure diagnosis apparatus, image... Failure diagnosis method, failure diagnosis apparatus, image...

2007-07-10

2007-07-10

Tsai, Carol S. W. (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Performance or efficiency evaluation

C399S009000

Reexamination Certificate

active

11064028

ABSTRACT:
A failure diagnosis method diagnoses failure occurring in an image forming apparatus. The failure causes defect in an image output from the image forming apparatus. The failure diagnosis method includes acquiring operation state signals indicating operation states during the image forming apparatus operating in different operation conditions, respectively; and analyzing the acquired operation state signals based on a failure probability model, which is obtained by modeling a cause of the failure occurring in the image forming apparatus with using probabilities, to execute failure diagnosis with respect to each of constituent members constituting the image forming apparatus.

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patent: A 2001-075808 (2001-03-01), None
U.S. Appl. No. 11/064,126, filed Feb. 23, 2005, Yasukawa et al.

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