System of controlling a plurality of copying machines interconnn

Details System of controlling a plurality of copying machines interconnn System of controlling a plurality of copying machines interconnn

1992-11-17

1995-01-24

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355208, 379106, G03G 2100, H04M 1100

Patent

active

053846222

ABSTRACT:
In a method and system for controlling a plurality of copying machines, plural control units respectively associated with the copying machines are connected with one another by means of a private branch exchange (PBX) telephone system. A control unit calls one or more of the other control units, internally through the extension lines of the PBX, at a prescribed data and time, to detect any abnormality in the operation of the called unit. If an abnormality is detected, a call is placed to a control center located external to the PBX, to thereby inform the control center of the detected abnormality.

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Research Newsletter-"Remote Diagnostics-Tool Kit of the Future", Dataquest, pp. 1-6, Feb., 1989.

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