Patent ID: 6450631
Filing Date: 2002-09-17
Classification: B41J

Abstract:
A stored ink jet head cartridge, in a closed space comprising:an ink jet recording head having an ejection port for ejecting ink; a negative pressure generating member containing chamber which has a negative pressure generating member for generating negative pressure and an atmosphere communicating part for communicating with outside; a mounting part; a liquid supply container exchangeably mounted to the mounting part, said liquid supply container having a liquid containing part forming a substantially closed space except for a communicating part communicating with said negative pressure generating member containing chamber and generating negative pressure by deforming accompanied with flowing-out of liquid contained therein, and having a box-like body with an inside surface equal to or analogous to an outside surface of said liquid containing part and with an atmosphere communicating part for introducing atmosphere, the liquid supply container being mounted onto said mounting part so as to form said communicating part communicating with said negative pressure generating member containing chamber; and a first sealing member for sealing said ejection port and a second sealing member for sealing the atmosphere communicating part of said negative pressure generating member containing chamber, and wherein part of said liquid containing part is stored in a state of being separated from said box-like body, and the interior of said liquid containing part of said liquid supply container and a liquid supply passage from said communicating part to said recording head are filled with liquid.