Patent ID: 8905531
Filing Date: 2014-12-09
Classification: B41J

Abstract:
1. An ink tank comprising: a tank body, a chamber being formed inside the tank body for containing ink, an ink filling port and a first opening being formed on an upper side of the tank body; a first pillar disposed in the first opening; a resilient component engaging with the first pillar and disposed in the first opening, the first pillar and the resilient component being engaged with the first opening to form an intake passage communicating with the chamber; a lid covering on the upper side of the tank body, a second opening being formed on the lid; a second pillar being disposed on a first surface of the lid facing to the upper side of the tank body, the second pillar comprising a communicating portion communicating with the second opening and the intake passage; and a waterproof moisture-permeable assembly disposed on the lid and communicating with the communicating portion through the second opening; wherein the resilient component is compressed to drive the first pillar to contact against a first inner wall of the tank body so as to close the intake passage as the tank body is uncovered by the lid, and the second pillar is inserted into the first opening to press the first pillar so as to form a first gap between the first pillar and the first inner wall, for opening the intake passage so as to communicate the chamber and outside atmosphere as the tank body is covered by the lid.