A server for controlling a plurality of image forming apparatuses each provided with an autonomous navigation system that enables the image forming apparatus to travel to a destination: receives first location information indicating a current location of each image forming apparatus, and second location information indicating a current location of the information terminal; receives at least a monochrome printing time that indicates a time period in which the image forming apparatus performs monochrome printing when the image forming apparatus is not capable of performing color printing; and selects one of the plurality of image forming apparatuses as an image forming apparatus to perform printing according to the user request, based on the first location information, the second location information, and the device information.