Patent ID: 7354143

Claim:
An inkjet recording apparatus comprising: a recording head which ejects ink droplets to perform recording; an ink cartridge which has an ink chamber for storing ink, an ink supply port for supplying the ink to the recording head therethrough, and an air introducing port for introducing an atmospheric air into the ink chamber therethrough; a mounting portion on which the ink cartridge is detachably mountable, and which has an ink supply portion for supplying the ink drawn from the ink cartridge to the recording head, and an air introduction portion for supplying the atmospheric air into the ink chamber; wherein the air introduction portion comprises: an air supply port disposed to positionally correspond to the air introducing port of the ink cartridge when the ink cartridge is mounted on the mounting portion; an air intake port for taking in the atmospheric air therethrough; and an air supply passage which extends between the air supply port and the air intake port and whose shape comprises a turn, and wherein the air supply passage of the air introduction portion comprises: a groove formed in a first one of opposite surfaces of a wall member constituting the mounting portion; and a covering member which is fixed to the wall member to cover an open surface of the groove.