Ink jet cartridge

摘要

The present invention relates to an ink jet cartridge, in particular for supplying ink through a communication opening (3) to an ink jet head of a recording apparatus, such as a printer or the like. Said cartridge being characterised in that it contains at least two vacuum producing materials (2,4) of different vacuum producing capacities. While the higher density cellular material (2) serves to meter the flow of ink there is another lower density cellular material (5) disposed upstream of the denser material to provide a sufficient ink storage capacity. The location of the air vent hole (7) is selected such that it is furthest from the lower density foam pad (4) to reduce practically the chances of any ink leakage from the cartridge body (1). <IMAGE>