US 12,269,265 B2
Liquid ejecting head and liquid ejecting apparatus
Yu Hasegawa, Shiojiri (JP); Hiroaki Okui, Azumino (JP); Eiichiro Watanabe, Matsumoto (JP); and Yuma Fukuzawa, Matsumoto (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on May 22, 2023, as Appl. No. 18/321,206.
Claims priority of application No. 2022-083631 (JP), filed on May 23, 2022.
Prior Publication US 2023/0373210 A1, Nov. 23, 2023
Int. Cl. B41J 2/14 (2006.01)
CPC B41J 2/14 (2013.01) [B41J 2002/14491 (2013.01); B41J 2202/08 (2013.01); B41J 2202/13 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A liquid ejecting head comprising:
head chips configured to eject liquid in an ejection direction;
one or a plurality of introduction portions for introducing a gas supplied from a gas supply mechanism into an inside of the liquid ejecting head;
a discharge portion for discharging the gas supplied to the one or the plurality of introduction portions to an outside of the liquid ejecting head; and
drive circuits provided in each of the head chips, wherein
the head chips include a first head chip and a second head chip,
the drive circuits include a first drive circuit for driving the first head chip and a second drive circuit for driving the second head chip,
a gas path through which the gas flows from the one or the plurality of introduction portions to the discharge portion includes
a first path coupled to the one or the plurality of introduction portions,
a second path coupled to the discharge portion,
a first branch path coupling the first path and the second path, and
a second branch path coupling the first path and the second path so as not to pass through the first branch path,
the first drive circuit is disposed in the first branch path, and
the second drive circuit is disposed in the second branch path.