The present invention allows desired printing to be easily achieved not with complex operation but with intuitive operation. In the present invention, short-range communications can be made between a portable terminal device and a copy machine. When the portable terminal device is placed on a placement table of the copy machine, the copy machine detects the placement state of the portable terminal device (for example, landscape orientation or portrait orientation), determines a print format (for example, printing in a vertical direction or a horizontal direction as a printing direction) according to this placement state, and performs printing of print data received from the portable terminal device according to the print format.