ABNORMALITY CAUSE IDENTIFYING DEVICE, MAINTENANCE EXECUTION PERIOD PREDICTION SYSTEM WITH THE SAME, AND ABNORMALITY CAUSE IDENTIFYING METHOD

摘要

PROBLEM TO BE SOLVED: To suppress a situation in which fault cases used for algorithm development include a non-fault case.SOLUTION: There is provided an abnormality cause identifying device which identifies an abnormality causing component having affected an abnormal state among two or more replacement object components having been replaced so as to remove the abnormal state if copying machines 601 to 607 enter the abnormal state. Based upon replacing component identification information for identifying the two or more replacement object components having been replaced and replacement order information representing the order of the replacement thereof, the abnormality cause identifying device identifies a replacement object component meeting predetermined component selection conditions as an abnormality causing component among the two or more replacement object components.