To enable remote maintenance of a print control apparatus and an image forming apparatus (an image processing apparatus) to be performed by a terminal apparatus, the image forming apparatus connects to a server apparatus that relays communication between the print control apparatus and the terminal apparatus, and establishes VNC communication with the print control apparatus via the server apparatus and VNC communication with the terminal apparatus. The print control apparatus notifies the image forming apparatus that the print control apparatus will restart when instructed to restart by the terminal apparatus while the remote maintenance by the terminal apparatus is continuing. The print control apparatus instructs the image forming apparatus to reconnect to the server apparatus when the restart of the print control apparatus completes.

A communication system including an image processing apparatus configured to, in response to receiving acquisition instruction information from a server via indirect communication, receive authentication information from an information processing terminal device via near-field wireless communication, transmit the received authentication information to the server via the indirect communication, and in response to receiving communication instruction information, which indicates a method for data communication with a service providing apparatus, from the server via the indirect communication, perform data communication with the service providing apparatus in accordance with the received communication instruction information.

A mechanism in a communication apparatus configured to transmit image data if a user that checked a destination is a user having approval authority is provided. The communication apparatus receives a destination from the user, acquires identification information about the user that checked the destination, determines whether the user that checked the destination has the approval authority based on the identification information, and transmits image data to the destination based on determining that the user that checked the destination has the approval authority.

A communication apparatus includes at least one memory storing instructions, and at least one processor that, upon execution of the instructions, is configured to: wait for connections from other communication apparatuses to a first network built by the communication apparatus, acquire connection information from a first other communication apparatus connected to the first network, search for a second network built by other communication apparatuses, acquire connection information from a second other communication apparatus found in the search, connect to a connection destination indicated by the connection information from the first other communication apparatus and the second other communication apparatus, and wherein the communication apparatus is controlled to switch between waiting for connections and searching for the second network.

A control method for a printing apparatus that receives print data from a printing service using Internet Printing Protocol and executes printing of the print data, includes displaying, a list of print jobs held in the printing service, accepting a print instruction for a print job selected from the displayed list, sending, to the printing service, a request for transmitting print data, and printing based on a received print data in response to the request triggered by the print instruction, using a printing device, and requesting the printing service to transmit print data corresponding to a print job selected from the list, in response to acceptance of a cancel instruction for the selected print job, and discarding the print data received from the printing service, without executing printing based on the print data.

A print system that is capable of performing a network setting operation easily in a case where two information processing apparatuses are connected. A first network connects first and second information processing apparatuses to an external apparatus. A second network that connects the first and second information processing apparatuses to exchange information for print management. The second information processing apparatus displays a first setting screen on which a user inputs network configurations of the first and second information processing apparatuses for the first network, changes the network configuration of the second information processing apparatus for the first network into the network configuration input by the user, and transmits the network configuration input by the user to the first information processing apparatus through the second network. The first information processing apparatus changes the network configuration of the first information processing apparatus for the first network into the network configuration transmitted.

A communication system including an image processing apparatus configured to, in response to receiving acquisition instruction information from a server via indirect communication, receive authentication information from an information processing terminal device via near-field wireless communication, transmit the received authentication information to the server via the indirect communication, and in response to receiving communication instruction information, which indicates a method for data communication with a service providing apparatus, from the server via the indirect communication, perform data communication with the service providing apparatus in accordance with the received communication instruction information.

A print system that is capable of performing a network setting operation easily in a case where two information processing apparatuses are connected. A first network connects first and second information processing apparatuses to an external apparatus. A second network that connects the first and second information processing apparatuses to exchange information for print management. The second information processing apparatus displays a first setting screen on which a user inputs network configurations of the first and second information processing apparatuses for the first network, changes the network configuration of the second information processing apparatus for the first network into the network configuration input by the user, and transmits the network configuration input by the user to the first information processing apparatus through the second network. The first information processing apparatus changes the network configuration of the first information processing apparatus for the first network into the network configuration transmitted.

A control method for a printing apparatus that receives print data from a printing service using Internet Printing Protocol and executes printing of the print data, includes displaying, a list of print jobs held in the printing service, accepting a print instruction for a print job selected from the displayed list, sending, to the printing service, a request for transmitting print data, and printing based on a received print data in response to the request triggered by the print instruction, using a printing device, and requesting the printing service to transmit print data corresponding to a print job selected from the list, in response to acceptance of a cancel instruction for the selected print job, and discarding the print data received from the printing service, without executing printing based on the print data.

A communication system includes a portable terminal, an image processing apparatus, and a server. The image processing apparatus transmits service request information to the server, and receives transmission instruction information from the server. The service request information includes request for a service provided by a service providing apparatus. The transmission instruction information includes an instruction to transmit connection destination information via the wireless near field communication. The connection destination information is for specifying a connection destination. The image processing apparatus transmits the connection destination information to the portable terminal via the first near field communication interface in response to establishment of wireless near field communication between the first near field communication interface and the portable terminal.