US 11,724,496 B2
Liquid ejection head
Keita Sugiura, Toyoake (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Aug. 8, 2022, as Appl. No. 17/883,023.
Application 17/883,023 is a continuation of application No. 16/952,647, filed on Nov. 19, 2020, granted, now 11,472,182.
Application 16/952,647 is a continuation of application No. 16/519,941, filed on Jul. 23, 2019, granted, now 10,875,300, issued on Dec. 29, 2020.
Application 16/519,941 is a continuation of application No. 15/468,719, filed on Mar. 24, 2017, granted, now 10,399,334, issued on Sep. 3, 2019.
Claims priority of application No. 2016-147221 (JP), filed on Jul. 27, 2016.
Prior Publication US 2022/0379613 A1, Dec. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B41J 2/14 (2006.01); B41J 2/155 (2006.01)
CPC B41J 2/1408 (2013.01) [B41J 2/155 (2013.01); B41J 2202/08 (2013.01); B41J 2202/19 (2013.01); B41J 2202/20 (2013.01); B41J 2202/21 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A liquid ejection head, comprising:
a plurality of head units arranged in a first direction;
a plurality of individual metal members each provided for a corresponding one of the plurality of head units and disposed on a first side of the corresponding one of the plurality of head units in a second direction orthogonal to the first direction; and
the plurality of head units each comprising:
a unit body comprising an actuator configured to cause ejection of liquid from a plurality of nozzles and a reservoir defining member; and
a driver integrated circuit disposed on a first side of the unit body in the second direction and configured to drive the actuator, the driver integrated circuit being in thermal contact with the corresponding one of the plurality of individual metal members and disposed between the corresponding one of the plurality of individual metal members and the reservoir defining member,
the plurality of individual metal members each being disposed on a first side of the driver integrated circuit in the second direction,
wherein the unit body comprises a nozzle surface on which the plurality of nozzles are formed and a wall which is one wall of two walls opposite to each other in a third direction orthogonal to the first direction and the second direction, the one wall being farther from the nozzle surface in the third direction than the other wall of the two walls,
wherein each of the plurality of individual metal members comprises a first plate extending along the first direction and a second plate extending along the second direction, and
wherein the one wall is not covered by the plurality of individual metal members.