Abstract: The invention relates to a negative-pressure ink cartridge refilling device, system and method. The device comprises an ink container used to store ink, an ink injection channel, an aspirator and a suction channel communicated with the ink container, wherein one end of the ink injection channel is an ink inlet end while the other end is an ink outlet end connected with the ink cartridge to be refilled; a sucking opening connected with the aspirator is formed on the suction channel; and the inlet end is disposed above the ink level surface of the ink container. Therefore, the ink in the ink container cannot be overflowed via the ink injection channel regardless of the environmental factors, and thus the technical problem that the phenomenon of ink splash tends to occur when the traditional negative-pressure ink cartridge refilling device is used by a user for the first time can be solved.

Abstract: An inkjet printer, which comprises a slide lid slideably connected with the cartridge body, wherein a fixed clamp is formed on both sides of the cartridge body respectively; a movable wall which is engaged and fastened with the fixed clamp at the end is formed on both sides of the slide lid respectively; and a friction force generating component is arranged on one side of the movable wall. Due to the friction forces generated by the friction force generating components, two sidewalls of the movable walls are tightly engaged with the inner wall of the ink cartridge bin of the printer to lock the ink cartridge and fix the ink cartridge into the ink cartridge bin of the printer. The technical problems of poor contact of a chip and abnormal disengagement of an ink container as locking members are loosened when the ink cartridge on the printer can be solved.

Abstract: The present invention provides an ink cartridge refilling device, which comprises an ink container used for storing ink, an air inlet channel communicated with the ink container and introduced outside air into the ink container, a suction channel communicated with the ink cartridge and connected with an aspirator to suck air in the ink cartridge, an ink injection channel communicated with an ink injection opening of the ink cartridge and formed on the ink container and a re-suction channel which is communicated with an ink outlet of the ink cartridge and connected with the aspirator to suck ink at the ink outlet after the ink cartridge is refilled. The ink cartridge refilling device has the advantage that: air bubbles can be prevented from being attached to the upper part of a piezoelectric transducer near the ink outlet.