| 摘要 |
An inkjet printer device includes: an ejection portion that ejects an ink droplet onto a recording medium; a humidification portion that is provided upstream of the ejection portion in a transportation direction of the recording medium and ejects a wetting liquid droplet onto the recording medium; and a control portion that makes the ink droplet be ejected onto the recording medium from the ejection portion and the wetting liquid droplet be ejected onto the recording medium from the humidification portion, wherein the ejection portion is humidified during printing by letting the wetting liquid droplet ejected onto the recording medium evaporate from the recording medium.
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