| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink tank capable of avoiding failure caused by burr that lowers a function of the ink tank even if the burr is caused by welding, and a method of manufacturing the same. SOLUTION: The ink tank 10 has a first tank member 1 formed in box shape whose upper part is made open, a second tank member 2 formed in box shape whose upper and lower parts are made open, a cover member 3, and an ink holding member 5 holding the ink to be supplied to an ink jet recording head, wherein an ink storing part 4 is formed by welding and joining an open end face 11 of the first tank member 1 and a lower open end face 21 of the second tank member 2, and the ink holding member 5 is housed in the ink storing part 4, and the ink storing part 4 is closed by welding and joining the cover member 3 and the upper open end face 22 of the second tank member 2. In the ink tank 10, at least a part of an inner peripheral edge of the lower open end face 21 of the second tank member 2 is positioned at the inner part of the tank than an inner peripheral edge of the open end face 11 of the first tank member 1. COPYRIGHT: (C)2010,JPO&INPIT |
