Patent ID: 8870360

Claim:
A method of dealing with a curl of a recording medium caused by ejection of a liquid by a droplet ejecting apparatus to the recording medium, comprising the steps of: calculating (I) an ejected-liquid amount which is an amount of the liquid ejected by the droplet ejecting apparatus to an evaluation region defined on the recording medium and (II) an ejected-liquid associated quantity which is one of (a) an ejected-liquid-droplet number which is a number of droplets of the liquid ejected to the evaluation region and (b) an ejected-area associated quantity which is one of: an area of unit regions in the evaluation region to which the liquid is ejected; and a ratio of the area of the unit regions to an area of the evaluation region; and estimating at least one of: a curl degree which is a degree of the curl of the recording medium caused by ejection of the liquid to the recording medium; and a correction degree which is a degree of correction necessary for restraining the curl, on the basis of: a position of the evaluation region; and the ejected-liquid amount and the ejected-liquid associated quantity calculated in the calculating step, wherein the ejected-liquid amount and the ejected-liquid associated quantity are calculated in the calculating step for each of a plurality of evaluation regions each as the evaluation region, wherein at least one of the curl degree and the correction degree is estimated in the estimating step on the basis of: the position of each of the plurality of evaluation regions; and the ejected-liquid amount and the ejected-liquid associated quantity calculated for each of the plurality of evaluation regions, and wherein the plurality of evaluation regions include a plurality of regions obtained by dividing the recording medium with a plurality of mutually different patterns.