Self-diagnosis and repair system for image forming apparatus

Details Self-diagnosis and repair system for image forming apparatus Self-diagnosis and repair system for image forming apparatus

H - Electricity

04

N

H04N 17/00 (2006.01) G03G 15/00 (2006.01) G06F 11/25 (2006.01) G06F 11/00 (2006.01)

Patent

CA 2051963

ABSTRACT OF THE DISCLOSURE This system according to the invention has plurality of sensors 1a, 1b and 1c, a system control circuit 10 and plurality of actuators 6a, 6b and 6c. In response to an application of state data from the sensors 1a, 1b or 1c, the state data is compared with characteristic data in the system control circuit 10. Consequently, it is judged that a fault is caused depending on whether the state data is relatively lower or higher. If a fault is caused, inference of the fault caused is drawn on the basis of a comparison between qualitative data and fault diagnosis knowledge which are stored in the system control circuit 10. Then, it is judged which of elements of a image forming apparatus is abnormal. Accordingly, actuator operating signal is outputted as the results of the judgement.

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