Patent ID: 7936475

Claim:
An image display system for reading and displaying an image comprising: an image display device; and a scanner device that is connected to the image display device through a network, wherein the scanner device includes a setting file storage unit, wherein the image display device, when receiving instructions from a user to read and display an image mounted on the scanner device, transmits to the scanner device a scan setting file that describes a scan condition and transmits to the scanner device a writing request requesting the scanner device to write the scan setting file, wherein the scanner device, when receiving the writing request, writes the scan setting file in the setting file storage unit, wherein the image display device transmits a file reading request to the scanner device, the file reading request specifying a predetermined reserved file name, wherein the scanner device, when receiving the file reading request, reads the image under the scan condition described in the scan setting file and transmits to the image display device image data acquired by reading the image to make the image display device display the image data, the image data having the predetermined reserved file name, and wherein the scanner device notifies the image display device of a predetermined file size as a file size of the image data in advance, wherein the scanner device, when transmitting the image data and when the file size of the image data is below the predetermined file size, adds dummy data to the image data so as to become the predetermined file size, and image data, to which the dummy data are added, are then transmitted to the image display device.