US 12,070,961 B2
Three-dimensional object printer
Koki Hirata, Nagano (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. 16, 2022, as Appl. No. 17/695,939.
Claims priority of application No. 2021-043200 (JP), filed on Mar. 17, 2021.
Prior Publication US 2022/0297444 A1, Sep. 22, 2022
Int. Cl. B41J 3/407 (2006.01); B41J 25/316 (2006.01); B41J 29/38 (2006.01); B25J 11/00 (2006.01); B25J 13/08 (2006.01)
CPC B41J 3/4073 (2013.01) [B41J 25/316 (2013.01); B41J 29/38 (2013.01); B25J 11/0075 (2013.01); B25J 13/086 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A three-dimensional object printer comprising:
a head having a plurality of nozzles that discharge a liquid;
a movement mechanism having an arm section that supports the head and having a plurality of joint sections provided at the arm section;
a drive circuit that generates a drive signal to drive the head;
a control circuit that generates a control signal to control supply of the drive signal to the head;
a first cable for transmitting the drive signal from the drive circuit to the head;
a second cable for transmitting the control signal from the control circuit to the head; and
a relay board coupled to the first cable and the second cable, wherein
at least a part of the second cable is arranged along the arm section, and
the control signal is transmitted as a differential signal to the second cable.