Patent ID: 7121656

Claim:
An ink cartridge comprising: a casing having at least one open face and receiving ink, the casing including a storage space that receives a porous material for absorbing ink and having a pair of sidewalls opposed to each other while putting the storage space therebetween; a first cover member that closes the open face of the casing while facing to the storage space; and a spacer member projecting from the first cover member into the storage space so as to occupy a predetermined space between the porous material and the first cover member in the storage space, the spacer member having an outer circumferential wall, a bottom wall and a support wall, the outer circumferential wall extending substantially along an inner surface of the storage space in section perpendicular to a projecting direction of the spacer member, the bottom wall covering a porous-material-side end portion of the outer circumferential wall, the support wall extending in a direction crossing the pair of side walls of the casing to be connected to inner surfaces of two sides of the outer circumferential wall opposed to the pair of side walls; wherein a space surrounded by the outer circumferential wall is made open to the outside through an opening portion formed to penetrate the first cover member.