Patent ID: 7243045
Filing Date: 2007-07-10
Classification: G03G,H04N

Abstract:
1. A failure diagnosis apparatus for diagnosing failure occurring in an image forming apparatus, the failure causing defect in an image output from the image forming apparatus, the failure diagnosis apparatus comprising: an image inspection section that compares a captured image, which is obtained by optically reading the image output from the image forming apparatus, with a reference image for inspection to analyze a state of defect in the captured image, a failure diagnosis section that analyzes operation state signals based on the state of the defect analyzed by the image inspection section and on a failure probability model, wherein the failure probability model 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, wherein: the operation states signals are automatically acquired in the image forming apparatus during the image forming apparatus operating in different operation conditions, respectively.