| 摘要 |
PROBLEM TO BE SOLVED: To make a device small-sized and inexpensive by automatically selecting a proper diagnostic program at each time according to an abnormal state of the device, sending the diagnostic program through an electronic mail to the device, and executing the program. SOLUTION: The device 10, a central monitor device 30, and an electronic mail processor 50 are connected to a network through a transmission line 70. The device 10 is equipped internally with an electronic mail processing part 20 which has a mail server function and is connected to the network. The device 10 informs the central monitor device 30 of abnormality information through an electric mail when the abnormality is detected, executes the diagnostic program sent through electronic mail from the central monitor device 30, and sends information on the diagnostic result back to the central processor through electric mail. The central processor selects the diagnostic program matching the abnormality information out of various diagnostic programs for diagnosing the cause of abnormality of the device 10 and sends it through the electronic mail to the device 10. |
