Image forming system in which an image forming apparatus having an error event or a warning event enters a sleep mode and an image forming apparatus not having an error event or a warning event remains in a normal mode so that a user can be directed to the image forming apparatus with the error event or the warning event

Abstract

An event detecting unit detects a specific error event or a specific warning event. An event notice transmitting unit transmits an event notice of the detected event to another image forming apparatus. An event notice receiving unit receives an event notice from another image forming apparatus. A status control unit is capable of changing the operation mode among a normal mode and a sleep mode. The status control unit changes the operation mode to the sleep mode or an out-of-service expression mode if the event notice is received in the normal mode. The out-of-service expression mode includes at least one of (a) putting off a light of the display device, (b) stopping a part or all of internal devices that make operation noise sound, and (c) denying reception of an execution request to a part or all of functions.