Shared terminal, communication system, image transmission method, and recording medium

A method of controlling transmission of an image, performed by a shared terminal, the method comprising:

• displaying, on a display, an image to a plurality of users, the plurality of users sharing a use of the shared terminal;
• and
• obtaining, from a first privately-owned terminal owned by a first user of the plurality of users, first terminal identification information for identifying the first privately-owned terminal;
• transmitting an authentication request for authenticating the first privately-owned terminal to a terminal management server, the authentication request including the first terminal identification information of the first privately-owned terminal;
• receiving an authentication result of authenticating the first privately-owned terminal from the terminal management server;
• and
• when the authentication result indicates that the first privately-owned terminal is a legitimate terminal, transmitting a print request for printing data relating to the image being displayed to a printer through a network.

A non-transitory recording medium storing a plurality of instructions which, when executed by one or more processors, cause the processors to perform a method of controlling transmission of an image, the method comprising:

• displaying, on a display, an image to a plurality of users, the plurality of users sharing a use of a shared terminal;
• and
• obtaining, from a first privately-owned terminal owned by a first user of the plurality of users, first terminal identification information for identifying the first privately-owned terminal;
• transmitting an authentication request for authenticating the first privately-owned terminal to a terminal management server, the authentication request including the first terminal identification information of the first privately-owned terminal;
• receiving an authentication result of authenticating the first privately-owned terminal from the terminal management server;
• and
• when the authentication result indicates that the first privately-owned terminal is a legitimate terminal, transmitting a print request for printing data relating to the image being displayed to a printer through a network.