초록 ▼

A centralized control system capable of remote controlling terminal devices such as a copying machine or automatic vending machine by using communication lines. The system displays information identifying the terminal devices which have not transmitted the information to a central unit after predete

A centralized control system capable of remote controlling terminal devices such as a copying machine or automatic vending machine by using communication lines. The system displays information identifying the terminal devices which have not transmitted the information to a central unit after predetermined time. Further, the system is provided with a back-up power source for backing up a memory storing the information to be transmitted and an IC for clocking the present time. The information stored in the memory is to be transmitted when the power is supplied again in the case where the transmission has not been carried out at the predetermined time because the power source for the terminal device was shut off. Moreover, the system judges, in the case where an image forming apparatus is adapted as a terminal device, whether the image forming apparatus has recovered from trouble condition to normal condition by judging whether a copy paper is actually discharged.

대표청구항 ▼

Centralized control system, comprising: one or more terminal devices; communicating means, provided for each of said one or more terminal devices, for transmitting information relating to operational condition of each of said terminal devices at a predetermined time; and controlling means, connected

Centralized control system, comprising: one or more terminal devices; communicating means, provided for each of said one or more terminal devices, for transmitting information relating to operational condition of each of said terminal devices at a predetermined time; and controlling means, connected to each of said communicating means through communication lines, for controlling each of said terminal devices in accordance with said information transmitted from each of said communicating means; said controlling means having: supervising means for supervising transmission of information at a new predetermined time determined for each of said communicating means; detecting means for detecting which of said communicating means has not transmitted the information at said predetermined time thereof based on a supervisory result of said supervising means; and displaying means for displaying information identifying the communicating means detected by said detecting means independent of the operational state of the communicating means or the communication lines.