| 摘要 |
A liquid cartridge (100) is provided for supplying liquid to a liquid ejecting apparatus when mounted thereon, comprising:
a liquid accommodating chamber;
a supply portion for supplying liquid accommodated in said liquid accommodating chamber to the liquid ejecting apparatus;
an atmospheric valve (254) selectively opening and sealing a communication hole (239) through which said liquid accommodating chamber communicates with ambient air; and
a biasing member (255) for biasing said atmospheric valve (254) toward said communication hole (239) for sealing the communication hole (239), wherein
biasing force of said biasing member (255) is determined so that said atmospheric valve (254) opens the communication hole (239) when the liquid cartridge with the liquid accommodating chamber, which is packed and sealed in a vacuum package under a negative pressure lower than atmospheric pressure, is exposed to atmosphere by opening the package. |
