In a case that a setting size for a print medium is set in print target data and the setting size has not been acquired as a candidate, a size having an aspect ratio corresponding to the aspect ratio of the setting size is specified. A motor device is disposed at the axis of rotation for rotating the cylindrical member so as to advance the web over the cylindrical member during a webbing-up operation. The elliptical tracks are spaced from each other at a width slightly less than the diameter of a golf ball, and are machined into the sidewalls at a predetermined angle of incidence such that, when viewed from directly overhead, the tracks will be perceived by the user as two parallel lines.