Failure diagnosis method, failure diagnosis apparatus, image forming apparatus, program, and storage medium
US7243045B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2005 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | May 29, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0098
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.