Patent ID: 8608299
Filing Date: 2013-12-17
Classification: B41J

Abstract:
1. An ink cartridge with replaceable ink bag, comprising: a cartridge body, an ink bag and a lid body; wherein: the cartridge body being a hard-shell container with an opening; inner walls on long side of the cartridge body comprising at least a retention block, a gap existing between the retention block and an inner bottom of the cartridge body; the ink body further comprising a trigger based on amount of remaining ink, a bag body and a positioning element; the bag body being a bag container with changeable shape, filled with ink, the bag body further comprising a first bag surface and a second bag surface, disposed oppositely, the first bag surface being partially glued to the trigger based on amount of remaining ink, the trigger based on amount of remaining ink moving towards a predefined direction as the amount of remaining ink decreasing; the second bag surface being partially glued to the positioning element; surroundings of the positioning element having at least a retention element; when assembled, the retention element being inserted between the retention block and the inner bottom for fixing the ink bag inside the cartridge body; and the lid body being removably engaged to the cartridge body for opening and closing the opening of the cartridge body.