RECORDING MATERIAL SUPPLY SYSTEM, CIRCUIT BOARD, STRUCTURE, AND INK CARTRIDGE FOR RECORDING MATERIAL CONSUMPTION DEVICE

摘要

A plurality of terminals are provided on a circuit board of an ink cartridge, and a plurality of lines are formed by contact portions of the plurality of terminals. In a first line among the plurality of lines, contact portions of two terminals for detecting attachment are arranged, and a contact portion of a power supply terminal is arranged therebetween. The first line may be located at a leading side when the ink cartridge is moved in a predetermined direction and is mounted on a printing device, or the first line may be the line closest to an opening of an ink supply port, or the first line may be the line closest to an ink supply needle.