An information processing apparatus includes a switching unit and a controller. The information processing apparatus performs a data sending and receiving operation with an external apparatus via a data line which is compliant with a predetermined standard. The switching unit switches the information processing apparatus to a host device or a non-host device in accordance with a state of the information processing apparatus. The controller controls a data sending and receiving operation performed with the external apparatus. The controller controls a data sending and receiving operation for a host device when the information processing apparatus is switched to the host device. The controller controls a data sending and receiving operation for a non-host device when the information processing apparatus is switched to the non-host device.

A communication apparatus may determine whether specific apparatus identification information for identifying a specific external apparatus is stored in a memory in a case where the specific apparatus identification information is received via a second interface from the specific external apparatus, shift an operating state of the communication apparatus from a non-parent station state to a parent station state in a case where it is determined that the specific apparatus identification information is stored in the memory, receive a wireless connection request from the specific external apparatus via a first interface after the operating state has been shifted from the non-parent station state to the parent station state, and form the wireless network in which the communication apparatus operates as the parent station and the specific external apparatus operates as a child station, in a case where the wireless connection request is received from the specific external apparatus.

A non-transitory storage medium stores a program set readable by a computer of a first information processing apparatus. The program set including a first program and a second program. The first program causes the first information processing apparatus to start the second program, and register the started second program, as a virtual scanner, in an operating system of the first information processing apparatus. The second program causes the first information processing apparatus to transmit a scan command of the first protocol to the external scanner, and receive a read result from the external scanner by the first protocol through the communication interface. The external scanner reads a document in response to receipt of the scan command transmitted from the information processing apparatus.

This invention provides, for each apparatus, one communication control unit that generically controls communication between a relay server and a communication client or a communication server in each apparatus. More specifically, each communication control unit creates a communication socket that designates a predetermined port and an IP address indicating a local apparatus, and exchanges data between the communication server and the communication client via the communication socket, adjusting and relaying communication data between HTTP and the communication protocol of each of the communication server and the communication client.

An image provision apparatus transmits image data to an image reception apparatus in response to a request for image data in compliance with a first protocol received from the image reception apparatus. Also, the image provision apparatus, upon receiving a request for information relating to streaming of image data in compliance with the first protocol from the image reception apparatus, transmits information relating to streaming to the external device. Furthermore, the image provision apparatus, in response to a request for streaming based on information relating to streaming in compliance with a second protocol received from the image reception apparatus, streams image data to an image reception apparatus. The image reception apparatus performs a request for streaming, reception of moving image data, and playback in compliance with the second protocol using a function of an OS, for example.

In a case where a setting of a function is changed from enabled to disabled, a printing apparatus stops transmission of a Bluetooth Low Energy packet in a format compatible with the function.

A printing apparatus performs wireless communication based on Bluetooth Low Energy by selecting a format of a Bluetooth Low Energy packet to be transmitted from a plurality of formats and transmits a Bluetooth Low Energy packet in the selected format, where the plurality of formats includes a format associated with a print application of device external to the printing apparatus.

A communication apparatus may determine whether specific apparatus identification information for identifying a specific external apparatus is stored in a memory in a case where the specific apparatus identification information is received via a second interface from the specific external apparatus, shift an operating state of the communication apparatus from a non-parent station state to a parent station state in a case where it is determined that the specific apparatus identification information is stored in the memory, receive a wireless connection request from the specific external apparatus via a first interface after the operating state has been shifted from the non-parent station state to the parent station state, and form the wireless network in which the communication apparatus operates as the parent station and the specific external apparatus operates as a child station, in a case where the wireless connection request is received from the specific external apparatus.

A communication device may receive a first specific signal from a terminal device via an NFC interface, determine whether the first specific signal includes install information, change an operation mode of the NFC interface from Reader mode to CE mode in a case where it is determined that the first specific signal does not include the install information, change the operation mode of the NFC interface from Reader mode to Writer mode in a case where it is determined that the first specific signal includes the install information, supply first identification information to the NFC interface in a case where the NFC interface operates in CE mode, and supply specific information different from the first identification information to the NFC interface in a case where the NFC interface operates in Writer mode.

To provide a non-transitory storage medium and a client device, both having a printer driver (PD), that are capable of suppressing the performance degradation of the printer driver resulting from a time required for exchanging a setting information of the function of the printer driver between the print server (PS) and the client device (CD). In an embodiment, the non-transitory storage medium, that includes the PD for an MFP that is to be executed by the CD causing the MFP to print via the PS controlling the MFP, restricts the available functions among the functions of the PD to reduce the size of the Devmode to be transmitted to the PS, when the communication speed between the PS and the CD is smaller than or equal to a specified speed.