Abstract: A liquid supply unit includes a first wall, a second wall that opposes the first wall, a third wall that intersects the first wall and the second wall, a fourth wall that intersects the second wall and opposes the third wall, a fifth wall that intersects the first wall, the second wall, the third wall, and the fourth wall, a sixth wall that intersects the first wall, the second wall, the third wall, and the fourth wall, and opposes the fifth wall, and a seventh wall that intersects the fifth wall and the sixth wall and is located between the first wall and the fourth wall. The direction from the third wall toward the fourth wall is a direction parallel to a moving direction in which the carriage moves back and forth. The seventh wall inclines relative to the gravity direction toward the third wall side.