US 12,187,033 B2
Liquid ejecting system and head unit
Yuki Hanamura, Azumino (JP); Takao Yamamoto, Matsumoto (JP); Nobuaki Ito, Shiojiri (JP); and Shunya Fukuda, Azumino (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Oct. 17, 2022, as Appl. No. 18/047,219.
Claims priority of application No. 2021-170339 (JP), filed on Oct. 18, 2021.
Prior Publication US 2023/0117636 A1, Apr. 20, 2023
Int. Cl. B41J 2/045 (2006.01); B41J 2/025 (2006.01)
CPC B41J 2/04588 (2013.01) [B41J 2/025 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A liquid ejecting system comprising:
a head unit that includes a pressure chamber, a drive element driven by an applied drive waveform, a vibration plate that vibrates by drive of the drive element, and a nozzle through which a liquid is ejected by a pressure applied in the pressure chamber by vibration of the vibration plate; and
an input portion to which an input parameter for detecting an ejection failure of the liquid based on residual vibration of the vibration plate is input from a server through a network connection portion, the input parameter includes a first input parameter regarding a threshold value to be compared with a potential indicating an amplitude of the residual vibration, and the first input parameter is set so that the threshold value becomes smaller as deterioration of the drive element increases.