Abstract: An image forming apparatus control system including at least one copier or similar image forming apparatus and a central control unit connected by a data communication unit and a communication line is disclosed. The image forming apparatus selectively inhibits or permits its image forming operation on receiving image formation control data representative of inhibition or permission, respectively, from the central control unit. An inhibiting device is included in the apparatus for inhibiting, if the apparatus is performing a current image forming operation at the time of receipt of the image formation control data representative of inhibition, the next image forming operation after the current operation has completed.

Abstract: In a service system, a plurality of image forming apparatuses and a control unit for remote-controlling them are connected by a communication line. A plurality of terminal units are located at respective service stations and also connected to the control unit. The image forming apparatuses each sends, when an event indicative of or predictive of an error occurs therein, information representative of the event to the control unit. The control unit received the information analyzes it and then selectively sends information relating to maintenance or repair to the image forming apparatuses to the terminal units.

Abstract: In a service system, a plurality of image forming apparatuses and a control unit for remote-controlling them are connected by a communication line. A plurality of terminal units are located at respective service stations and also connected to the control unit. The image forming apparatuses each sends, when an event indicative of or predictive of an error occurs therein, information representative of the event to the control unit. The control unit received the information analyzes it and then selectively sends information relating to maintenance or repair to the image forming apparatuses to the terminal units.