Carriage moving mechanism and liquid discharge apparatus

A carriage moving mechanism comprising:

• a driving unit including a driving pulley, a driving motor, and a first support member for supporting the driving pulley and the driving motor;
• a driven unit including a driven pulley and a second support member for supporting the driven pulley;
• a third support member that is disposed from the first support member to the second support member, and supports the driving unit and the driven unit;
• an annular belt that is wound around the driving pulley and the driven pulley, and has, between the driving pulley and the driven pulley, a first outer peripheral surface and a second outer peripheral surface facing to the first outer peripheral surface;
• and
• a first carriage that is attached to the first outer peripheral surface, wherein
• when a division plane is defined as a plane to equally divide the annular belt and when the division plane faces to the first outer peripheral surface and the second outer peripheral surface,
• the second support member, the third support member, and the first support member are aligned in this order in a first axis, the second outer peripheral surface and the first outer peripheral surface are aligned in the second axis intersecting with the first axis, and
• in a plan view from the first axis, a portion where the annular belt intersects with the division plane overlaps with the third support member.