US 11,981,151 B2
Three-dimensional object printing apparatus and three-dimensional object printing method
Shinichi Nakamura, Okaya (JP); Yuta Abe, Sakata (JP); Yuichiro Matsuura, Chino (JP); Keigo Sugai, Chino (JP); and Yuki Ishii, Shiojiri (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by Seiko Epson Corporation, Tokyo (JP)
Filed on Mar. 8, 2022, as Appl. No. 17/689,068.
Claims priority of application No. 2021-037083 (JP), filed on Mar. 9, 2021.
Prior Publication US 2022/0288863 A1, Sep. 15, 2022
Int. Cl. B41J 3/407 (2006.01); B29C 64/35 (2017.01); B29C 64/379 (2017.01); B41J 2/165 (2006.01); B41J 29/393 (2006.01)
CPC B41J 29/393 (2013.01) [B29C 64/35 (2017.08); B29C 64/379 (2017.08); B41J 2/16505 (2013.01); B41J 2/16535 (2013.01); B41J 3/4073 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A three-dimensional object printing apparatus comprising:
a head having a nozzle surface provided with a nozzle row in which a plurality of nozzles for ejecting a liquid are arranged; and
a robot that has a base portion and an arm portion that supports the head, the robot being provided with a plurality of rotating portions from the base portion to the arm portion, the robot being configured to change a position of the head with respect to the base portion by rotating the rotating portion, wherein
the three-dimensional object printing apparatus is configured to execute:
a first printing operation of causing the head to print an image by ejecting the liquid to a three-dimensional first medium while causing the robot to change a position of the head with respect to the three-dimensional first medium; and
a second printing operation of causing the head to print a test pattern by ejecting the liquid to a second medium while causing the robot to change a position of the head with respect to the second medium, and
a yaw angle of the head during the execution of the first printing operation and a yaw angle of the head during the execution of the second printing operation are different from each other.