When an instruction to execute an image processing from a user is accepted through an operation panel, a control section temporarily stores image data read from an original or externally received image data in an HDD, and then, outputs processing information related to the image processing based on the accepted execution instruction and the image data stored in the HDD from a communication section to a server apparatus as historical data. When an obtaining completion signal representative of the completion of obtaining of the historical data is obtained from the server apparatus through the communication section, the control section performs the image processing on the image data stored in the HDD according to the accepted execution instruction. Then, the control section erases the image data subjected to the processing from the HDD.