Image reading device for correcting image read from original, method of controlling the image reading device, and storage medium

摘要

An image reading device which corrects images read from respective first and second sides of an original (100) without increasing the total circuit size. A scanner unit (image reading device) reads an image on a front surface of an original by a front-side reading section and reads an image on a back-side of the original by a back-side reading section in a single feeding operation. The scanner unit detects a skew angle of the original read by the front-side reading section (106), with respect to the front-side reading section (106), and corrects image data read by the front-side reading section (106) and image data read by the back-side reading section (109), according to the detected skew angle of the original.