Patent ID: 6851799

Claim:
An ink cartridge incorporating a memory chip, the cartridge comprising: an ink cartridge housing having a top wall, a bottom wall and plural side walls defining the exterior of the cartridge for enclosing a supply of ink; the bottom wall having an aperture formed therein to provide an opening through the exterior surface of the bottom wall; a pocket-like structure formed within the bottom wall and/or on an inside surface of the bottom wall, the pocket-like structure being formed about the aperture; and a generally planar substrate including a relatively rigid circuit board and the memory chip received in the pocket-like structure, the pocket-like structure locating the circuit board in the cartridge; the substrate including a generally planar surface and at least one electrical contact formed on the generally planar surface, the generally planar surface of the substrate being generally parallel to the bottom wall so that the at least one electrical contact faces the aperture so as to be accessible to a contact member external to the cartridge when the cartridge is mounted in a printer's cartridge receiving receptacle, the cartridge housing being formed by mating two housing halves, each housing half including part of the top wall, part of the bottom wall, a complete side wall and part of two other side walls of the plural side walls, and each housing half further including in or on an internal surface of the respective bottom wall part of the pocket-like structure so that when the two housing halves forming the cartridge housing are mated the circuit board is trapped within the pocket-like structure formed by the two housing halves.