Image processing system

Facsimile apparatus 1 transmits scanning control information including common user setting information and image processing information to host computer 2. Host computer 2 extracts user setting information from the received scanning control information to display, and updates the image processing information by referring a user changed setting value in the user setting information to transmit to facsimile apparatus 1. Facsimile apparatus 1 executes the image processing of scanned data based on the received image processing information. And facsimile apparatus 1 transmits scanned data to which image processing executable in a facsimile apparatus side is executed to host computer 2, and host computer 2 executes image processing unexecutable in a facsimile apparatus side to the received scanned data.