Transmission device

A transmission device comprising:

• a first transmission unit that transmits data between the transmission device and an information processing device;
• a second transmission unit that transmits desired data between the transmission device and an external transmission terminal;
• a determination unit that determines, based on signals from the information processing device, whether the information processing device is executing a data transmission processing program for controlling transmission processes of the second transmission unit;
• and
• a control unit that, unless the determination unit determines that the information processing device is not executing the data transmission processing program, controls the first transmission unit to transmit a predetermined control signal to the information processing device when the second transmission unit is to receive data from the external transmission terminal, the predetermined control signal indicating that the second transmission unit is to receive data, such that the information processing device is prevented from unnecessary interruptions of data processes being executed when the determination unit determines that the information processing device is not executing the data transmission processing program.