INK JET RECORDER AND INK CARTRIDGE

摘要

PROBLEM TO BE SOLVED: To easily increase kinds of shapes for conformity judgment in a relatively narrow space. SOLUTION: A recessed part is formed to an ink cartridge 1. Each three- dimensional space axis of the ink cartridge including one side face where an ink supply port 14 is formed is divided to obtain a plurality of coordinate points. Projecting parts 31-1 to 31-3 for identification which become identification elements are arranged selectively to the coordinate points in accordance with identification items.