In response to a position information request, a controller in a management system transmits original image position information to an image processing device such that the controller transmits first and second original image position information, respectively, in response to first and second position information requests that are different from each other, first and second original image storage positions indicated by the first and second original image position information being different from each other. The controller receives original image data from the image processing device that has accessed by using the original image position information, stores the original image data at an original image storage position, and transmits code data to the image processing device. In response to a target image data request from a terminal device that has acquired target image position information by reading a code image, the controller transmits target image data to the terminal device.