| 摘要 |
Provided is a technology with which attachment properties of a liquid supply unit with respect to a liquid jetting device are improved. First and second ink cartridges are attached to a carriage of a printing device via a holder. The first and second ink cartridges are each provided with: a circuit board (130) provided with a plurality of terminals (151-159) which are electrically connected to device-side terminal parts provided to the holder; and a main engagement part (120) which engages with a lever (230) of the holder such that movement of the circuit board (130) away from the holder is restricted, said lever serving as a part to be engaged. Each of the circuit boards (130) includes first and second terminals (151, 152) which are positioned at either end in a terminal-arrangement direction. Each of the main engagement parts (120) has a width which is broader than a space between contact parts (CP) of the first and second terminals (151, 152) in the terminal-arrangement direction. |
