Patent ID: 9180678
Filing Date: 2015-11-10
Classification: B41J

Abstract:
1. A recording head for ejecting ink, the recording head comprising: an ejection portion configured to eject ink; a first flow path forming member; and a second flow path forming member provided on a lower side of the first flow path forming member in a configuration where in a usage state of the recording head, air bubbles are suppressed due to the positioning of the second flow path member, wherein the first flow path forming member and the second flow path forming member are joined to each other, between which a flow path for supplying ink to the ejection portion, a buffer chamber for keeping gas, and a communication passage communicating between the flow path and the buffer chamber, are formed; wherein the first flow path forming member is provided with a recessed portion forming a part of the buffer chamber; wherein the second flow path forming member is provided with a protruded portion protruding into the buffer chamber, and a through-hole penetrating the second flow path forming member is formed inside the protruded portion, and wherein a communication port being an end on a buffer chamber side of the through hole is arranged at a position higher than a wall of a top surface that constitutes a communication passage in a usage state of the recording head.