A sheet winding mechanism includes a detachable winding core, a rotating body coupled to a first end portion of the winding core to rotate the winding core, and a non-rotating body against which a second end of the winding core is pressed. The winding core includes a winding core main body, a first portion which is located at the first end portion and is coupled to the rotating body, a second portion which is located at the second end portion, is movable in the axial direction, and presses against the non-rotating body, a first elastic body which urges the second portion outward along the axial direction, and a sheet holding portion configured to hold an end portion of a sheet. When the rotating body rotates the winding core while the sheet holding portion is holding the end portion of the sheet, the sheet is wound around the winding core.
展开▼
