Banner & Witcoff, Ltd.
Liquid ejection head
A liquid ejection head includes pressure chambers arrayed in an array direction, a supply manifold extending in the array direction, a return manifold disposed below the supply manifold, and a bypass channel. Each pressure chamber receives a pressure for ejecting liquid from a corresponding nozzle. The supply manifold communicates with the pressure chambers and includes a supply opening through which liquid enters from an exterior. The return manifold is formed by a first forming unit to extend in the array direction and communicate with the pressure chambers, and includes a return opening through which liquid exits to the exterior. The bypass channel connects the supply manifold and the return manifold. The first forming unit includes a first top surface defining a top surface of the return manifold, and a first protrusion protruding downward from the first top surface and having a lower end at which the bypass channel is open.
Brother Kogyo Kabushiki Kaisha
B B B B B
B41J B41J B41J B41J B41J
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Keita Keita Shohei Hiroshi
Sugiura Hirai Koide Katayama