Liquid ejection module

A liquid ejection module comprising:

• a pressure chamber that communicates with an ejection port and which stores a liquid ejected from the ejection port;
• an energy generation element that is provided in the pressure chamber and which produces energy for causing a liquid to be ejected from the ejection port;
• a supply flow path that supplies a liquid to the pressure chamber;
• a collecting channel that collects a liquid from the pressure chamber;
• a liquid sending chamber that connects to the collecting channel;
• a connection flow path that connects the liquid sending chamber and the supply flow path;
• and
• a liquid sending unit configured to circulate a liquid in the supply flow path, the pressure chamber, the collecting channel, the liquid sending chamber, and the connection flow path by expanding and contracting a volume of the liquid sending chamber, wherein
• the liquid sending chamber has a continuously inclined structure,
• in the liquid sending chamber, a cross-sectional area in a cross section parallel to a plane perpendicular to a gravity direction becomes smaller along a direction opposite to the gravity direction, and
• a portion at which the cross-sectional area becomes the smallest is a portion that connects to the connection flow path.