A communication system including a communication device and information display devices connected with the communication device. The communication device includes a status storage unit storing status information representing a status of the communication device, a status transmitter that in response to a status request from each information display device, transmits the stored status information to the information display devices, and an error settlement starting information receiver receiving, from one of the information display devices, error settlement stating information representing that error settlement is being started to fix an error of the communication device. Each information display device includes a display unit displaying an operable image when received status information includes an error status representing the error of the communication device, and an error settlement starting information transmitter that in response to the operable image being operated, transmit the error settlement starting information to the communication device.