US 12,172,452 B2
Liquid jet head and liquid jet recording device
Takanori Koyano, Chiba (JP); Yuichiro Hamano, Chiba (JP); and Masatoshi Seki, Chiba (JP)
Assigned to SII Printek Inc., Chiba (JP)
Filed by SII Printek Inc., Chiba (JP)
Filed on Dec. 7, 2022, as Appl. No. 18/076,804.
Claims priority of application No. 2021-205201 (JP), filed on Dec. 17, 2021.
Prior Publication US 2023/0191814 A1, Jun. 22, 2023
Int. Cl. B41J 29/377 (2006.01); B41J 2/18 (2006.01)
CPC B41J 29/377 (2013.01) [B41J 2/18 (2013.01); B41J 2202/08 (2013.01); B41J 2202/12 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A liquid jet head comprising:
a jet unit which is provided with a plurality of pressure chambers arranged in sequence from one side toward the other side in a first direction, and which is configured to jet liquid located inside the pressure chambers;
a flow channel member which is provided with a guide flow channel configured to guide the liquid from the one side toward the other side in the first direction, and in which the guide flow channel is coupled to each of the pressure chambers and provides the liquid to the pressure chambers; and
a circuit board on which a plurality of drive controllers arranged along the first direction is mounted, and which is thermally coupled to the flow channel member, wherein
the flow channel member is provided with a cooling flow channel which is configured to guide the liquid from the other side toward the one side in the first direction so as to cool the plurality of drive controllers.