US Patent 7393087 Ink supply structure with transport tube

An ink supply structure for supplying ink flowing out from an ink cartridge including an ink supply port via an ink transporting tube to a recording portion, including: an ink cartridge base having; a cartridge connecting portion which makes the ink flowing out from the ink cartridge, when the cartridge connecting portion connects to the ink supply port upon loading of the ink cartridge on the ink cartridge base; an ink flow path which connects to the cartridge connecting portion; and a tube connecting portion connected to the ink transporting tube, wherein the ink cartridge base is configured by a base main body and a supplemental member fitted in the base main body, and wherein the ink flow path is formed on joint faces between the base main body and the supplemental member.