US 12,251,942 B2
Liquid ejecting apparatus and liquid ejecting method
Hiroyuki Hagiwara, Matsumoto (JP); and Noriaki Okazawa, Shiojiri (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Dec. 5, 2022, as Appl. No. 18/074,866.
Claims priority of application No. 2021-197579 (JP), filed on Dec. 6, 2021.
Prior Publication US 2023/0173821 A1, Jun. 8, 2023
Int. Cl. B41J 2/18 (2006.01); B41J 25/316 (2006.01); B41J 2/175 (2006.01)
CPC B41J 2/18 (2013.01) [B41J 25/316 (2013.01); B41J 2/17503 (2013.01); B41J 2202/12 (2013.01); B41J 2202/20 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A liquid ejecting apparatus, comprising:
a liquid ejecting head including an ejecting surface configured to eject a liquid;
a tank that reserves the liquid to be supplied to the liquid ejecting head;
a circulating mechanism that executes a circulating operation to circulate the liquid between the liquid ejecting head and the tank; and
a control unit that controls the circulating mechanism, wherein
the control unit executes a recording operation by the liquid ejecting head in a first posture in which the ejecting surface crosses a horizontal plane and executes the circulating operation in a second posture in which an angle made by the ejecting surface and the horizontal plane is smaller than the angle in the first posture,
the liquid ejecting head includes:
a first common liquid chamber communicating with first nozzles;
a first supply port introducing the liquid to the first common liquid chamber;
a first discharge port discharging the liquid from the first common liquid chamber;
a second common liquid chamber communicating with second nozzles;
a second supply port introducing the liquid to the second common liquid chamber; and
a second discharge port discharging the liquid from the second common liquid chamber, and
in the first posture, a first flow direction in which the liquid flows from the first supply port to the first discharge port and a second flow direction in which the liquid flows from the second supply port to the second discharge port are opposite to each other.