US 11,813,873 B2
Liquid discharge head and method for manufacturing liquid discharge head
Jiro Yamamoto, Nagoya (JP); Yasuhiro Sekiguchi, Nagoya (JP); and Yoshitsugu Morita, Nagoya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Sep. 29, 2021, as Appl. No. 17/489,504.
Claims priority of application No. 2020-180358 (JP), filed on Oct. 28, 2020.
Prior Publication US 2022/0126587 A1, Apr. 28, 2022
Int. Cl. B41J 2/14 (2006.01); B41J 2/16 (2006.01); B41J 2/175 (2006.01)
CPC B41J 2/175 (2013.01) [B41J 2/1433 (2013.01); B41J 2/162 (2013.01); B41J 2/1623 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A liquid discharge head comprising:
a channel unit including:
a plurality of individual channels aligned in a first direction, each of the individual channels including a nozzle;
a common channel extending in the first direction and connected to the plurality of individual channels;
a supply hole connected to the common channel; and
a damper chamber located at a position overlapping with the supply hole in a second direction orthogonal to the first direction,
wherein the channel unit includes a first plate and a second plate,
wherein the first plate includes a first surface which is orthogonal to the second direction and on which a recess forming the damper chamber is formed,
wherein the second plate includes a second surface attached to the first surface via an adhesive, and
wherein a protrusion is located at a bottom of a first part of the recess, the first part of the recess overlapping with the supply hole in the second direction.