1. An image reading system comprising an image reading device, and a plurality of information terminals connected to the image reading device by a communication network, wherein the information terminals comprise setting unit for setting a job to be executed by the image reading device, and response unit for responding to a job inquiry and sending the job to the image reading device, and wherein the image reading device comprises inquiry unit for sending the job inquiry to the plurality of information terminals, display unit for displaying the jobs received from the plurality of information terminals so as to be selectable, selection unit for selecting the displayed jobs, and execution unit for executing the selected jobs.