US 12,030,315 B2
Liquid discharge head
Shotaro Kanzaki, Handa (JP); Taisuke Mizuno, Yokkaichi (JP); and Keita Sugiura, Toyokawa (JP)
Assigned to Brother Kogyo Kabushiki Kaisha, Nagoya (JP)
Filed by Brother Kogyo Kabushiki Kaisha, Nagoya (JP)
Filed on May 27, 2021, as Appl. No. 17/331,923.
Claims priority of application No. 2020-111487 (JP), filed on Jun. 29, 2020.
Prior Publication US 2021/0402769 A1, Dec. 30, 2021
Int. Cl. B41J 2/14 (2006.01); B05B 1/14 (2006.01)
CPC B41J 2/1433 (2013.01) [B05B 1/14 (2013.01); B41J 2002/14338 (2013.01); B41J 2002/14467 (2013.01); B41J 2002/14475 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A liquid discharge head, comprising:
a first channel member including a plurality of individual channel rows and a plurality of first common channels that correspond to the respective individual channel rows, each of the individual channel rows including a plurality of individual channels that include a plurality of nozzles and that are aligned in a first direction, the individual channel rows being arranged in a second direction intersecting with the first direction, the first common channels extending in the first direction, the first common channels being arranged in the second direction, each of the first common channels communicating with the individual channels included in a corresponding one of the individual channel rows,
a second channel member disposed at one side of the first channel member in a third direction orthogonal to the first direction and the second direction, and including a second common channel provided in common to the first common channels, and
a third channel member disposed between the first channel member and the second channel member in the third direction, and including at least parts of a plurality of connection channels connected to the second common channel, the at least parts of the connection channels including a plurality of channels that correspond to the respective first common channels, each of the channels connecting a corresponding one of the first common channels and the second common channel,
wherein one of the connection channels is connected to an end in a longitudinal direction of the second common channel, and
wherein the liquid discharge head further comprises a communication opening disposed at a part of the second common channel except the end in the longitudinal direction of the second common channel, the second common channel communicating with the outside through the communication opening.