To perform setting about image scanning while watching an image display screen.

This image reader which has a reader screen 180, displays an image formed on a microfilm F on the screen 180 and also generates image data by scanning the displayed image is provided with an operating part 270 for setting a condition about image scanning and a set content notifying means which transmits a content set by the part 270 to an externally connected host computer and operates the part 270 to be able to perform various setting even while connected to the host computer by notifying the set content performed by the part 270 to make the host computer be able to grasp the set content all the time.