Liquid ejection apparatus

A liquid ejection apparatus, comprising:

• a head elongated in a longitudinal direction perpendicular to a conveying direction in which a recording medium is conveyed, the head comprising:
• an upstream side face in the conveying direction;
• and an ejection face comprising a plurality of ejection openings, the head being configured to eject liquid onto the recording medium from the plurality of ejection openings, an ejection space being opposed to the plurality of ejection openings;
• a cap mechanism comprising:
• a facing member capable of facing the ejection face;
• and a separator capable of separating the ejection space and an outside space, the cap mechanism being configured to switch a state of the ejection space between a closed state in which the ejection space is enclosed with the ejection face, the facing member, and the separator and an open state in which the ejection space is open to the outside space;
• a first supply opening portion and a discharge opening portion each communicating with the ejection space being in the closed state, the first supply opening portion and the discharge opening portion being arranged on opposite sides of the plurality of ejection openings in the longitudinal direction when viewed in a direction perpendicular to the ejection face;
• a second supply opening portion provided along the upstream side face of the head and communicating with the ejection space being in the open state;
• a humidifying mechanism configured to supply humid air to at least one of the first supply opening portion and the second supply opening portion,
• wherein, when the ejection space is in the closed state, an amount of the humid air supplied to the first supply opening portion is greater than that of the humid air supplied to the second supply opening portion, and
• wherein, when the ejection space is in the open state, an amount of the humid air supplied to the second supply opening portion is greater than that of the humid air supplied to the first supply opening portion.