An image processing system includes a portable terminal and an image processing device that wirelessly communicates with the portable terminal. The portable terminal includes a first CPU that sends a connection request to the image processing device to request to establish a connection with the image processing device and that sends an execution start command to enable the image processing device to execute a job when the connection with the image processing device is established. The image processing device includes a wireless communication interface that establishes the connection with the portable terminal in response to the connection request from the portable terminal and a second CPU that receives the execution start command from the portable terminal, executes the job based on the execution start command in order of receipt, and terminates the connection with the portable terminal after the execution start command is received.

An information processing apparatus configured to control a cooperation operation that is to be executed by a first apparatus and a second apparatus, executes: reception processing of receiving the target data from the first apparatus; first determination processing of determining whether the information processing apparatus can communicating with the second apparatus; storing control processing of storing the received target data in a storage unit when it is determined in the first determination processing that the communication unit is in a non-communicable state with the second apparatus; second determination processing of determining whether the information processing apparatus cannot communicate with the second apparatus, after executing the storing control processing; and transmission processing of wirelessly transmitting the target data stored in the storage unit to the second apparatus through the communication unit when the information processing apparatus can communicate with the second apparatus.

A print control system 1 has a control server 10 that transmits print data, and a printer 12 that communicates with the control server 10 through an asynchronous duplex communication path, receives print data sent by the control server 10 through the communication path, and prints based on the received data.

A control method of an information processing device that is capable of performing communication by Wi-Fi and communication by Bluetooth includes accepting a predetermined instruction based on a user operation to the information processing device, executing, after the predetermined instruction is accepted, displaying processing that displays a predetermined screen that is a screen for allowing the information processing device to communicate with a communication device by Wi-Fi based on a fact that the information processing device is not able to perform communication with the communication device by Wi-Fi, and executing, after the predetermined instruction is accepted, communication processing that communicates, with the communication device by Bluetooth, predetermined information for establishing a wireless connection of the communication device by Wi-Fi.

In a case where an image forming apparatus operates as a master station determining a communication channel used in wireless communication, the image forming apparatus transmits a second trigger frame that includes information indicating inexecution of carrier sensing and complies with an Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, to a slave station apparatus connected to the master station.

An information processing apparatus performs control such that, when a setting of a frequency band is changed while the information processing apparatus is operating as an access point, the frequency band is not changed before the information processing apparatus stops operating as the access point, and the information processing apparatus operates based on the changed setting of the frequency band when newly starting operating as the access point after stopping operating as the access point.