Second and third outer surfaces intersect a first outer surface, and are spaced from each other. A sensor-signal output terminal is disposed on the first outer surface. A discharge port is disposed on the second outer surface. A channel member is closer to the second outer surface than a liquid storing section is. First and second directions are perpendicular to the first and second outer surfaces, respectively. A third direction is perpendicular to the first and second directions. When a space is divided by an imaginary line parallel to the first direction, as viewed from the third direction, into a first region in which the channel member is disposed and a second region in which the liquid storing section is disposed, the sensor and terminal are disposed in the first region. The liquid channel extends linearly in the second direction. The sensor and terminal are aligned in the first direction.