Apparatus and method for controlling internal negative pressure of ink container

摘要

An apparatus for controlling an internal negative pressure of an ink container (1) used in an ink-jet printing apparatus is disclosed. The apparatus includes a hollow tube (20) located in an interior of the ink container (1), and a containing member (23) connected to the hollow tube (20) for containing therein an ink (2) of the container to prevent an atmospheric air from entering the interior of the ink container (1) while the ink container (1) is placed upside down. Thus, upon the ink container (1) is back to the normal placement and in the working status, the ink (2) will not leak from the ink-jet head (3). <IMAGE>