To provide a winding device, capable of detecting both a vertical surface and a horizontal surface of a recording medium, and a printer using that.

This printer 1 is provided with a carrying belt 202 to carry a recording medium P while sucking it, a recording means to carry out printing to the recording medium P by a flat printing surface of the carrying belt 202, a winding means 3 to detect the recording medium P after printing by a detection sensor 306, and carry out winding action. The winding means 3 is provided with an angle changing means to change an installation angle of the detection sensor 306 depending on the carrying passage of the recording medium P.