Patent ID: 11945163
Assignee: SEIKO EPSON CORPORATION
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 15:
16. 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;
a moving mechanism that changes a position and a pose of the liquid discharge head relative to a three-dimensional workpiece; and
a controller a configured to control the moving mechanism and the liquid discharge head in a first printing operating of performing printing, wherein
when the nozzle surface has a nozzle array including a plurality of nozzles arrayed, a first end in a direction intersecting an array direction of the plurality of nozzles, and a second end on a side opposite to the first end,
the workpiece has a first surface and a second surface that forms a corner bent or curved in a convex shape between the first surface and the second surface, and
when an axis along a scanning direction of the liquid discharge head with respect to the workpiece in the first printing operation of performing printing on the first surface is a first scanning axis and a normal direction of the nozzle surface in the first printing operation is a first discharge direction, the controller is configured to control the moving mechanism to move the liquid discharge head so that in the first printing operation, an angle formed by the first scanning axis and the first discharge direction is an acute angle and the liquid lands on a position closer to the corner than positions of the plurality of nozzles in a direction along the first scanning axis.