Patent ID: 8085419

Claim:
An image input/output system in which an image reading device, a server, and a client device are communicably connected to one another via a network, wherein: said server comprises a receiving unit adapted to receive a reading instruction from said client device, and an instruction unit adapted to instruct said image reading device to read an original according to the reading instruction received at said receiving unit, and said image reading device comprises a reading unit adapted to read the original based on the instruction from said instruction unit, and a sending unit adapted to send image data read by said reading unit to said client device without going through said server, wherein said image reading device is adapted to attach information regarding a storage destination of actual image data to preview image data, and to send the preview image data to said client device by said sending unit, and wherein said client device is adapted to perform a deletion instruction with respect to the actual image data, according to the storage destination information attached to the preview image data sent by said sending unit.