A printing system is provided. A user directs an instruction apparatus to an electronic board in a state where an image of image data to be desirably printed is displayed, and presses a file selection button. While pressing the file selection button, the user directs the instruction apparatus to a printer desirably caused to print, and while directing the instruction apparatus to the printer, the user releases the file selection button. When the print instruction button is pressed while the instruction apparatus being directed to the printer, desired image data is printed from the printer to which the instruction apparatus is directed.