Method and apparatus for refilling an ink cartridge

摘要

An ink cartridge which is provided therein with a spring assembly for generating a negative pressure inside the cartridge being refilled with ink while applying a compression onto the spring assembly. The compression is removed so as to allow the spring assembly to expand and to generate the negative pressure. The application and removal of the compression is provided by a pressure tool that has an elastic metal strip bent so as to press the spring assembly; and the ink refilling is accomplished using an opening tool for making an access to the inside of the ink cartridge and an ink refilling adapter for introducing ink from an ink supply into the ink cartridge, which form an ink refilling kit along with the pressure tool.