Patent ID: 7072063

Claim:
An information processing system in which a high-order apparatus and a low-order apparatus are connected so as to be capable of bidirectional communication, wherein the low-order apparatus stores information relating to number of tones of image data handled by the low-order apparatus and transmits the information relating to number of tones to the high-order apparatus in response to a request from the high-order apparatus; and the high-order apparatus processes the image data using the information relating to number of tones transmitted from the low-order apparatus and high-order apparatus transmits the processed image data to the low-order apparatus, wherein the high-order apparatus has the information relating to number of tones of a specific low-order apparatus in advance, and the high-order apparatus includes means for determining the model of the low-order apparatus, and means for refraining from requesting the low-order apparatus to transmit the information relating to number of tones in a case where the high-order apparatus determines that the model of the low-order apparatus correspond to the specific low-order apparatus.