Network output system and registration method of authentication information

A network output system, comprising:

• a user device that transmits output data containing authentication information;
• and
• an output device that has a reading unit and receives the output data from the user device and that outputs data contained in the output data when the authentication information contained in the output data is identical to the authentication information read from the reading unit,
• wherein the user device includes:
• a memory that stores the authentication information received from the output device;
• and
• a processor that controls to store the authentication information received from the output device in the memory;
• and
• wherein the output device includes:
• an input unit for inputting instructions from outside;
• and
• a processor that controls, when identification information for identifying a device on a network is input from the input unit, to transmit the authentication information received from the reading unit to the user device identified by the identification information.

A registration method of authentication information used in a system including a user device that transmits output data containing authentication information, and an output device that has a reading unit and receives the output data from the user device and that outputs data contained in the output data when the authentication information contained in the output data is identical to the authentication information read from the reading unit, the method comprising:

• transmitting identification information for identifying its own device on a network from the user device to the output device;
• receiving the identification information by the output device from the user device and receiving the authentication information by the output device from the reading unit;
• transmitting the received authentication information from the output device to the user device identified by the identification information;
• and
• storing the authentication information received from the output device in a memory of the user device.