Control apparatus of copying machine with improved communication function for centralized control unit
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United States of America Patent
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Apr 5, 1994
Grant Date -
N/A
app pub date -
Apr 8, 1991
filing date -
Apr 10, 1990
priority date (Note) -
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Abstract
A control apparatus according to the present invention is a control apparatus collecting data related to copying machines and communicating with a centralized control unit on the basis of the data collected, including a communication device for calling the centralized control unit, a determination device for determining that connection with the centralized control device can not be made in spite of the fact that the communication device is activated, a setting device for setting a retransmission time on the basis of a random number in a predetermined time period in response to a determination output of the determination device, a timer device for counting the present time, and a control device for having the communication device call the centralized control unit again when the present time becomes the retransmission time.
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