To make it easy to set a desired job and execute a series of tasks on an image reading device, an image reading system is equipped with an image reading device and a plurality of information terminals connected to the image reading device by a communication network, wherein the information terminals are equipped with setting means (unit) for setting a job to be executed on the image reading device, and response means (unit) for responding to a job inquiry and sending the job to the image reading device. The image reading device is equipped with inquiry means (unit) for sending the job inquiries to the plurality of information terminals, display means (unit) for displaying the jobs received from the plurality of information terminals so as to be selectable, selection means (unit) for selecting the displayed jobs, and execution means (unit) for executing the selected job.