METHOD FOR CHARGING INK IN INK CARTRIDGE BY CHANGING INTERNAL PRESSURE AFTER REDUCING PRESSURE OF INK CARTRIDGE AND CHARGE VALVE

摘要

PURPOSE: An ink charge method of an ink cartridge and a charge valve are provided to easily charge ink from the ink container to the ink cartridge according to change of pressure of the cartridge by combining the valve with the discharge hole and reducing pressure of the ink cartridge. CONSTITUTION: An ink charge valve is composed of a supporting member(1) inserted to a discharge hole of an ink cartridge, a moving pipe(2) protruded in the center of the lower part of the supporting member and composed of a passage(3), a shutoff ball(4) inserted to the center of the supporting member and elastically mounted by a spring(5), and a cap(6) combined with the upper part of the supporting member to support the shutoff ball by restricting displacement and composed of an assembling hole(7) formed in the center.