US 11,981,152 B2
Three-dimensional object printing apparatus
Masaru Kumagai, Shiojiri (JP); Shinichi Nakamura, Okaya (JP); Tomonaga Hasegawa, Matsumoto (JP); Yuichiro Matsuura, Chino (JP); and Yuki Ishii, Shiojiri (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by Seiko Epson Corporation, Tokyo (JP)
Filed on Feb. 21, 2022, as Appl. No. 17/676,301.
Claims priority of application No. 2021-025983 (JP), filed on Feb. 22, 2021.
Prior Publication US 2022/0266530 A1, Aug. 25, 2022
Int. Cl. B41J 3/407 (2006.01); B41J 11/00 (2006.01); B41J 2/165 (2006.01)
CPC B41J 3/40731 (2020.08) [B41J 3/4073 (2013.01); B41J 11/00212 (2021.01); B41J 11/00218 (2021.01); B41J 2002/16573 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A three-dimensional object printing apparatus comprising:
a first robot supporting a head having a nozzle for discharging a liquid and changing a position and a posture of the head;
a second robot supporting a three-dimensional workpiece and changing a position and a posture of the workpiece;
a curing unit that emits energy to cure or solidify the liquid discharged from the head; and
a maintenance unit that performs maintenance on the head, wherein
the first robot has a first base portion fixed to a base,
the second robot has a second base portion fixed to the base, and
in a plan view of the base, a virtual line segment connecting the first base portion and the second base portion passes between the curing unit and the maintenance unit.