US 11,813,865 B2
Liquid discharging head
Keita Sugiura, Toyokawa (JP); Jiro Yamamoto, Nagoya (JP); Shotaro Kanzaki, Handa (JP); Taisuke Mizuno, Yokkaichi (JP); and Hiroshi Katayama, Toyoake (JP)
Assigned to Brother Kogyo Kabushiki Kaisha, Nagoya (JP)
Filed by Brother Kogyo Kabushiki Kaisha, Nagoya (JP)
Filed on May 26, 2021, as Appl. No. 17/330,963.
Claims priority of application No. 2020-111206 (JP), filed on Jun. 29, 2020.
Prior Publication US 2021/0402773 A1, Dec. 30, 2021
Int. Cl. B41J 2/14 (2006.01)
CPC B41J 2/14201 (2013.01) [B41J 2002/14419 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A liquid discharging head comprising:
a pressure chamber configured to apply a pressure to a liquid so as to discharge the liquid from a nozzle;
a descender arranged to overlap, in a plan view, with the nozzle and communicating the pressure chamber and the nozzle with each other;
at least one return throttle channel connected to the descender; and
a return manifold which communicates with the at least one return throttle channel and which is configured to receive the liquid not having been discharged from the nozzle,
wherein a cross section of the descender orthogonal to a depth direction of the descender is an oval shape having a major axis and a minor axis;
the at least one return throttle channel is connected to a first end side of the minor axis and/or a second end side, opposite to the first end side, of the minor axis; and
the at least one return throttle channel extends from the descender along the minor axis and then bends toward the return manifold.