Patent ID: 8430583
Filing Date: 2013-04-30
Classification: B41J

Abstract:
1. A printing device comprising: a transport unit configured to transport a sheet-shape printing medium; a printing unit configured to print an image on the printing medium transported by the transport unit; a shape detection unit configured to detect the shape of edges of the printing medium; a position detection unit configured to detect the positions of the edges when an image is printed on the printing medium by the printing unit; and a first determination unit configured to determine the attitude of the printing medium based on the shape of the edges detected by the shape detection unit and the positions of the edges detected by the position detection unit, wherein the printing unit controls a printing position based on the attitude of the printing medium determined by the first determination unit and performs printing on the printing medium; wherein the shape detection unit detects a plurality of positions of the target edges which are edges of the printing medium in a direction orthogonal to a transport direction as the shape of the edges, wherein, the position detection unit detects two locations of the plurality of locations when the image is printed on the printing medium by the printing unit, and wherein, the first determination unit determines the attitude of the printing medium based on an angle between a straight line passing through the two positions of the plurality of positions detected by the shape detection unit and a straight line passing through the two positions detected by the position detection unit.