Patent ID: 8941897
Filing Date: 2015-01-27
Classification: H04N

Abstract:
1. An image reading apparatus comprising: a housing having a conveyance path where a first medium and a second medium that is narrower and thicker than the first medium are conveyed; a pair of first conveyance rollers that has a first driving roller and a first pinch roller, which is biased towards the first driving roller and is rotated by the first driving roller, and is configured to convey the first medium on the conveyance path; a pair of second conveyance rollers that has a second driving roller and a second pinch roller, which is rotated by the second driving roller, and is configured to convey the second medium on a conveyance area that is positioned at one end-side of the conveyance path in an axis direction of the second driving roller, an outer diameter of the second pinch roller is smaller than an outer diameter of the first pinch roller; and a reading unit configured to read images of the first and second media, wherein the first driving roller and the first pinch roller are positioned at an outside of the conveyance area in the axis direction, wherein the second driving roller and the second pinch roller are positioned at an inside of the conveyance area in the axis direction, wherein the first driving roller and the second driving roller are rotatably supported about a driving shaft center parallel with the axis direction, and wherein the first pinch roller and the second pinch roller are rotatably supported about a driven shaft center parallel with the driving shaft center.