Patent ID: 8651618

Claim:
A liquid ejection apparatus, comprising: a liquid-ejection head having an ejection face in which a plurality of ejection openings are formed, the liquid-ejection head being configured to eject liquid through the plurality of ejection openings to record an image on a recording medium; a sealing mechanism configured to selectively establish (i) a sealing state in which the sealing mechanism seals an ejection space, in which the plurality of ejection openings are open, from an outside and (ii) an unsealing state in which the sealing mechanism does not seal the ejection space from the outside; a humid-air supply mechanism configured to supply humid air into the ejection space when the sealing mechanism is in the sealing state; a storage memory configured to store first information corresponding to a length of time of the unsealing state; and a controller configured to determine an amount of the humid air to be supplied into the ejection space by the humid-air supply mechanism when the sealing mechanism is in a current sealing state based on a length of time of an unsealing state just before the current sealing state and configured to control the humid air supply mechanism to supply the determined amount of the humid air into the ejection space in the current sealing state, wherein the determined amount of the humid air to be supplied into the ejection space increases when the length of time of the unsealing state increases.