| 摘要 |
An ink cartridge includes a hollow ink tank body, a cover connected to a top of the hollow ink tank body; a pressure regulator arranged inside the hollow ink tank body, and a sealing ring enclosing a supply port of the hollow ink tank body. The hollow ink tank body defines a chamber therein, and the supply port is formed on a bottom thereof. The cover has an air vent penetrating therethrough and a handling member pivoted to a top surface thereof and rotatable for manipulation. The pressure regulator is connected to a hollow tube communicating with the air vent of the cover, so that atmospheric air passes through the pressure regulator via the hollow tube after a sealing film is removed. The sealing ring is made of elastic material to ease for penetration with a small aperture that can be shrunk to secure ink flow from the supply port.
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