A method for controlling an image forming system including a wireless operation unit having a third wireless communication unit, an acquiring unit that acquires status information of the image forming apparatuses, and a display that displays the status information of the image forming apparatuses includes a connection process in which the third wireless communication unit connects individually to each of a first wireless communication unit of a first image forming apparatus and a second wireless communication unit of a second image forming apparatus via wireless communication without a wireless LAN router, an acquisition process in which the acquiring unit acquires the status information of the first image forming apparatus and the status information of the second image forming apparatus individually, and a display process in which the display displays the status information of the first image forming apparatus and the status information of the second image forming apparatus.

An image processing apparatus includes a printing unit, a storage unit, and a processing unit. The storage unit stores communication addresses of image processing apparatuses in a group to which the apparatus belongs. In response to a request for registration in the group from a different image processing apparatus, the processing unit causes the storage unit to store a communication address of the different image processing apparatus, and transmits a registration commission for registering the communication address of the different image processing apparatus in the group to the image processing apparatuses in the group using the communication addresses stored in the storage unit.

A relay device may receive first information and second information from the image processing device. The relay device may select one of a first processing and a second processing based on at least one of the received first information and the received second information. The relay device may send, to an image processing device, first instruction information causing the image processing device to execute the first processing when the first processing is selected. The relay device may send, to the image processing device, second instruction information causing the image processing device to execute the second processing when the second processing is selected. The relay device may receive the first image data according to the first instruction information or the second instruction information. The relay device may generate second image data by executing the selected image processing on the first image data that has been received.