Patent ID: 7832827
Filing Date: 2010-11-16
Classification: B41J

Abstract:
1. An inkjet head comprising: a flow path unit comprising a first surface and a second surface opposite the first surface, wherein the flow path unit is configured to eject ink in an ink ejection direction; an actuator positioned on the second surface, wherein the actuator is configured to generate ejection energy for ejecting ink; a plurality of wall plates positioned on the second surface and extending away from the flow path unit in a direction opposite from the ink ejection direction, wherein at least one of the plurality of wall plates is a heat sink configured to transfer heat to an outside of the at least one of the plurality of wall plates; a covering member contacting at least one of the plurality of wall plates, wherein the covering member is configured to cover a portion of the second surface of the flow path unit, and the covering member comprises a plurality of sidewalls, wherein a first portion of at least one of the plurality of sidewalls contacts a first portion of a corresponding one of the plurality of wall plates, and a second portion of the at least one of the plurality of sidewalls and a second portion of the corresponding one of the plurality of wall plates defines a gap therebetween; and a seal positioned in the gap, wherein the seal is configured to prevent fluid from entering the gap.