Patent ID: 7796284

Claim:
An image processing system including at least first and second image processing apparatuses, the image processing system comprising: the first image processing apparatus on a transmitter side, comprising: a history storing unit adapted to store a transmission history of image data; an input unit adapted to input an instruction of specifying image data in the transmission history stored in the history storing unit and transmitting image data with which the specified image data is replaced; a determination requesting unit adapted to request determination of whether the second image processing apparatus on a receiver side has output the image data specified by the input unit, to the second image processing apparatus; and a transmitting unit adapted to transmit, to the second image processing apparatus, the image data with which the image data specified by the input unit is replaced, if it is determined that the second image processing apparatus has not output the image data specified by the input unit, and the second image processing apparatus on the receiver side, comprising: a responding unit adapted to determine whether the second image processing apparatus has output the image data specified by the input unit and respond to the request from the first image processing apparatus; and a replacing unit adapted to replace the image data specified by the input unit with the image data transmitted from the first image processing apparatus by the transmitting unit.