US 11,679,586 B2
Liquid discharge head
Shotaro Kanzaki, Handa (JP); Toru Kakiuchi, Chita (JP); Takaaki Yoshino, Nagoya (JP); Taisuke Mizuno, Yokkaichi (JP); and Jiro Yamamoto, Nagoya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Sep. 23, 2021, as Appl. No. 17/483,345.
Claims priority of application No. JP2020-179934 (JP), filed on Oct. 27, 2020.
Prior Publication US 2022/0126578 A1, Apr. 28, 2022
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 discharge head comprising:
a plurality of first individual channels, each of the first individual channels including a first nozzle;
a first supply manifold connected to the plurality of first individual channels and configured to supply a liquid to the plurality of first individual channels;
a first return manifold connected to the plurality of first individual channels and configured to cause the liquid not discharged from the first nozzle to flow therein;
a plurality of second individual channels, each of the second individual channels including a second nozzle;
a second supply manifold connected to the plurality of second individual channels and configured to supply the liquid to the plurality of second individual channels;
a second return manifold connected to the plurality of second individual channels and configured to cause the liquid not discharged from the second nozzle to flow therein; and
a first bypass channel connecting the first supply manifold and the second return manifold,
wherein the first bypass channel includes: a first supply connecting channel connected to the first supply manifold; a first return connecting channel connected to the second return manifold; and a first connecting channel communicating the first supply connecting channel and the first return connecting channel, and
wherein channel resistance in one of the first supply connecting channel and the first return connecting channel is greater than channel resistance in the first connecting channel.