An image reading apparatus allowing the user to easily sort, when early jam occurs and sheet conveyance is stopped, sheets already read and yet to be read. The image reading apparatus conveys sheet of the sheet bundle S placed on a document tray 30 along with the conveyance path one by one, reads images on the sheet and then, delivers the sheet to the delivery tray 31. By receiving driving force from a single driving source, each roller included in the image reading apparatus 400 conveys the sheet along with the conveyance path in order. Each roller includes feed roller 1, separation roller 2, conveyance roller 3, and delivery roller 5. The reader 200 included in the image reading apparatus 400 obtains images on the sheet passing through the reading position R which is set on the conveyance path P.