Patent ID: 8705150

Claim:
An image reading apparatus comprising: an introduction port used to introduce a first medium; a discharge port used to discharge the first medium; an image reading unit configured to read an image on the first medium, said image reading unit being arranged on a conveying path of the first medium, which extends from said introduction port to said discharge port; a conveying unit configured to convey the first medium from said introduction port to said discharge port, and to convey a second medium, a width of which is smaller than the first medium and which is introduced from said discharge port, to said image reading unit, so as to read an image on the second medium by said image reading unit; and guide portions configured to guide the second medium introduced from said discharge port along the conveying path, said guide portions being arranged along a conveying direction of the second medium to oppose side surface portions in a widthwise direction of the second medium, wherein said guide portions are formed by inner side surfaces of a concave portion formed in a portion which forms a conveying path of the second medium.