Patent ID: 8672443

Claim:
A liquid ejection apparatus, comprising: a liquid-ejection head having a plurality of ejection openings and configured to eject liquid through the ejection openings to record an image on a recording medium; a sealing mechanism configured to selectively establish (i) a sealed state in which an ejection space in which the ejection openings are open is sealed from an outside and (ii) an unsealed state in which the ejection space is not sealed from the outside; a humid-air supply mechanism configured to supply a humid air into the ejection space; and a controller configured to control the sealing mechanism, the humid-air supply mechanism, and the liquid-ejection head, wherein, during the sealed state of the ejection space established by the sealing mechanism, the controller controls the humid-air supply mechanism to supply the humid air into the ejection space such that one of a density and a viscosity of the liquid to be ejected from the ejection openings becomes less than a predetermined appropriate value, and then controls the liquid-ejection head such that the liquid having an amount equal to or larger than a set amount is preliminarily ejected through the ejection openings as a preliminary ejection prior to the ejection of the liquid onto the recording medium for recording the image on the recording medium.