Three-dimensional object printing apparatus and three-dimensional object printing method

A three-dimensional object printing apparatus comprising:

• a liquid discharge head having a nozzle surface on which a plurality of nozzles which discharge a liquid are provided;
• and
• a moving mechanism that changes a position and a pose of the liquid discharge head relative to a three-dimensional workpiece, wherein
• the workpiece has a first surface and a second surface that forms a corner bent or curved in a concave shape between the first surface and the second surface, and
• when (i) an axis along a scanning direction in which the liquid discharge head is moved with respect to the workpiece in a first printing operation of performing printing on the first surface is a first scanning axis, (ii) the nozzle surface is inclined with respect to the first scanning axis, and (iii) a normal vector of the nozzle surface in the first printing operation is a first discharge vector, the first discharge vector of th nozzle surface has a component in a direction toward the second surface along the first scanning axis, the direction of the component of the first discharge vector being parallel to the first surface, and
• the nozzle surface is inclined with respect to the first surface in the first printing operation and is also inclined with respect to the second surface in a second printing operation of performing printing on the second surface.