Patent ID: 8439482

Claim:
An ink supply system for supplying ink to an ink jet printing apparatus, the ink jet printing apparatus having a lever adapted to move with respect to the printing apparatus, the lever having an engagement portion and the printing apparatus comprising a plurality of apparatus-side contact forming members, the ink supply system comprising: an ink chamber for storing ink; an ink supply structure, adapted and configured to supply ink from the ink chamber to the ink jet printing apparatus, the ink supply structure having a mounting direction leading edge defining a plane; an electrical device and a terminal bearing structure having a plurality of electrically conductive terminals coupled to the electrical device, the terminals adapted and arranged on the terminal bearing structure to make contact with and receive elastic force from the contact forming members at contact portions of said terminals when the ink supply system supplies ink to the printing apparatus; and a first restriction portion including an engagement portion adapted to engage with the engagement portion of the lever so as to restrict movement of the terminal bearing structure in a direction opposite the mounting direction; wherein the engagement portion of the first restriction portion is positioned adjacent the terminal bearing structure and the contact portions are arranged substantially in a contact portion plane which is neither parallel nor perpendicular to the plane defined by the leading edge when the ink supply system supplies ink to the printing apparatus.