US Patent 7914135 Liquid cartridge and circuit board

A liquid cartridge mountable on a cartridge mounting portion of a liquid consuming apparatus, the liquid cartridge includes: a circuit board that is attached to an outer surface of the liquid cartridge in an insertion direction of the liquid cartridge into the cartridge mounting portion; and a connection terminal that is formed in the circuit board to be contactable with a connector provided in the cartridge mounting portion, wherein the circuit board has a positioning hole that is formed at a front end side in the insertion direction into the cartridge mounting portion, and an error absorption hole that is formed at a base end side in the insertion direction and has a larger opening area than that of the positioning hole, and the positioning hole is engaged with a positioning boss that is provided in the liquid cartridge, the error absorption hole is engaged with an error absorption boss that is provided in the liquid cartridge, and the circuit board is fixed to a container main body by thermally caulking the bosses.