INK CARTRIDGE FOR PRINTER

摘要

An ink cartridge for a printer is provided to expand a space filled with ink and to prevent a reverse flow of bubbles and the ink from being generated due to flow of the ink. An ink cartridge for a printer comprises a cartridge body(210), a cartridge case(230), and a cover. The cartridge body includes an ink filling chamber(211) and an ink discharge chamber(212), connected by an ink carrying groove(215). The cartridge case with a predetermined size is used to contain the cartridge body. The cover is installed to seal an aperture of an upper end for the cartridge body and formed with a pressure control unit controlling internal pressure of the cartridge body. The cartridge body includes an air suction valve(214) opened at one direction to supply air to the ink filling chamber and to control inflow of air selectively. The pressure control unit has a regular space by a stuck isolation film.