The winding device has a winding shaft 205 that rewinds roll paper S conveyed from a printer 100, which has a conveyance unit 115 that conveys the roll paper S; a power input unit 206 to which power from the conveyance unit 115 is input; a winder-side power transfer mechanism that transfers power input to the power input unit 206 to the winding shaft 205; and a lever 208 that can move between a first position P1 where the lever 208 bends the conveyance path of the roll paper S from the printer 100 to the winding shaft 205, and a second position P2 where the lever 208 bends the conveyance path a shallower angle than at the first position P1, and to which is applied a force moving the lever 208 toward the first position P1.