A medium support device 7 includes a support base 5 that supports a T-shirt F; a movement mechanism 6 that supports the support base 5 so that the support base 5 is movable in a direction along a Z-axis; a base section 8 configured to support the movement mechanism 6; and a spacer 10 arranged between the movement mechanism 6 and the base section 8 in the direction along the Z-axis, wherein the spacer 10 can be inserted and pulled out in a direction along a Y-axis.