When a user activates a printer driver recorded in a memory of an information processing apparatus, a setting screen to configure operation setting for the printer driver's matching image forming apparatus is displayed on a display of the information processing apparatus, and in the setting screen, an instruction portion to give an instruction to show the documents stored in a memory area of the image forming apparatus is shown. And when the user gives an instruction by using the instruction portion, a request to show the documents is transmitted to the image forming apparatus. Receiving the request, the image forming apparatus returns to the information processing apparatus, reference information to select a document among those stored in the memory area. And then, a selection screen to select a document among those stored therein is displayed on the display, based on the reference information received from the image forming apparatus.