Liquid ejecting apparatus and cartridge

A cartridge configured to be mounted on a liquid ejecting apparatus including an ejection portion having a plurality of ejection ports configured to eject liquid and a circuit configured to detect a capacitance between electrodes, the cartridge comprising:

• a liquid storage portion defining a liquid storage space configured to store liquid supplied to the ejection portion;
• a bottom electrode provided at a bottom surface of the liquid storage portion;
• and
• a side electrode provided at one side surface of the liquid storage portion and electrically isolated from the bottom electrode,
• wherein when the cartridge is mounted on the liquid ejecting apparatus, at least one of the bottom electrode and the side electrode being electrically connected to the circuit, and a capacitance between the bottom electrode and the side electrode being detected by the circuit,
• wherein an end portion of the bottom electrode adjacent to the side electrode is provided at an end portion of the bottom surface, and forms an acute angle with a surface that is parallel to the side electrode and that extends upward from a tip end of the end portion of the bottom electrode.