Patent ID: 6254227
Filing Date: 2001-07-03
Classification: B41J

Abstract:
A cartridge for supplying ink on demand to an ink-jet printhead, the cartridge comprising:a housing having a top wall, a bottom wall, and a plurality of side walls all defining a housing interior,a vent hole through the top wall of the housing, providing fluid communication into the housing interior,a recess in the outer surface of the top wall of the housing, wherein the recess extends from the vent hole to an edge of the top wall, wherein the recess has a depth;a vent tube extending from the recess at the edge of the top wall along one of the side walls of the housing;a barrier extending from the floor of the recess between the vent hole and the edge of the top wall, wherein the barrier extends across the width of the recess, and has a height less than the depth of the recess; anda seal covering the top of the recess.