Cartridge

A cartridge to be detachably attached to a cartridge attachment in a printing apparatus, the cartridge being attached to the cartridge attachment through an attaching operation in which the cartridge is completely inserted into the cartridge attachment in an insertion direction, the insertion direction being a horizontal direction, and then a rear portion of the cartridge in the insertion direction is moved in a rotation attaching direction containing a gravity-directional component with a deep side of the cartridge in the insertion direction used as a rotation fulcrum, the cartridge comprising:

• a main body that forms an outer envelope;
• a liquid reservoir that stores liquid to be supplied to the printing apparatus, the liquid reservoir being disposed inside the main body;
• a liquid inlet formed across the main body, the liquid inlet leading to an interior of the liquid reservoir;
• a liquid reservoir body that includes a liquid supply section through which the liquid is to be supplied to a liquid introduction section in the cartridge attachment, the liquid supply section communicating with the liquid reservoir;
• and
• an adapter mounted on the liquid reservoir body, the adapter having an insertion aperture into which the liquid introduction section is to be inserted, wherein
• when the cartridge is in an attached state where the cartridge is attached to the cartridge attachment, the main body has a front wall positioned on a deep side of the main body in the insertion direction, a top wall that intersects the front wall and that is positioned on a side opposite to a side on which the adapter is disposed, and a reservoir body corner at which the front wall intersects the top wall, and
• the liquid inlet is formed at the reservoir body corner.