Patent ID: 8297738
Filing Date: 2012-10-30
Classification: B41J

Abstract:
1. An ink cartridge for mounting on an ink jet printing apparatus, the ink jet printing apparatus comprising a plurality of apparatus-side contact forming members constructed and arranged to apply elastic force to the ink cartridge when the ink cartridge is pressed against said apparatus-side contact forming members, the ink jet printing apparatus also comprising a lever adapted to move with respect to the printing apparatus as the ink cartridge is mounted on the printing apparatus, the lever having an engagement portion, the ink cartridge, comprising: a cartridge body including a front, a rear, a top and a bottom, the front and rear opposite each other and the top and bottom opposite each other; an ink chamber for storing ink; an ink supply structure positioned at the bottom of the cartridge body, 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 of the ink cartridge; a terminal bearing structure located proximate to the front of the cartridge body, and an electrical device, the 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 cartridge is mounted on the printing apparatus, the contact portions arranged substantially in a contact portion plane which is neither parallel nor perpendicular to the plane defined by the leading edge; 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 ink cartridge in a direction opposite the mounting direction, the engagement portion of the first restriction portion located adjacent the terminal bearing structure.