An image processing system includes an image processing device including at least one of an image reading unit which reads an image and generates image data representing the image and an image printing unit which prints an image represented by image data; and a service supply unit provided on a network to be accessible from the image processing device using location information indicating a location on the network, and configured to execute a service regarding at least one of image data generated by the image reading unit and image data representing an image to be printed by the image printing unit in response to a request from the image processing device.