To compensate for a carrying delay of a recording medium when the recording medium comes into contact with a roller, with respect to a liquid droplet ejection device configured to eject on the recording medium a second liquid coagulating or depositing the component of a first liquid prior to the ejection of the first liquid such as ink forming images on the recording medium and to extend and spread the second liquid hit on the recording medium with the rotating roller.

To compensate for a carrying delay of paper P when the paper P comes into contact with the rolling roller pair 10, an adjustment time arithmetic section 60 obtains an adjustment time t for delaying the ejection timing of ink (the first liquid) corresponding to a delay index K. The delay index K contains elements such as an area or amount of a processing liquid (the second liquid) stuck (or scheduled to be stuck) to the tip area Pb of the paper P and an amount of the processing liquid left on the roller 10a without being dried. A recording head control unit 51a ejects ink on a recording head 1a based on the ink ejection data and adjustment time t.