Patent ID: 8783808
Filing Date: 2014-07-22
Classification: B41J

Abstract:
1. An inkjet printing device comprising: a print head that ejects a plurality of types of inks including a first ink having a first contact angle to a surface of a predetermined print medium and a second ink having a second contact angle to the surface which is smaller than the first contact angle: an obtaining unit configured to obtain ejection data representing an application amount of the first ink and the second ink to be ejected to a predetermined area; and an ejection unit configured to, on the basis of the ejection data obtained by the obtaining unit, scan the print head a plurality of times relatively to the predetermined area of a print medium, and to eject the plurality of types of inks from the print head to the predetermined area to print an image, wherein if the ejection data obtained by the obtaining unit represents that the application amount of the first ink is larger than the application amount of the second ink by more than a predetermined value in the plurality of times of scans, the ejection unit ejects the second ink such that an application amount of the second ink to be ejected in last half scans is greater than an application amount of the second ink to be ejected in first half scans, and wherein if the ejection data obtained by the obtaining unit represents that the application amount of the second ink is larger than the application amount of the first ink by more than a predetermined value in the plurality of times of scans, the ejection unit ejects the first ink such that an application amount of the first ink to be ejected in the last half scans is greater than an application amount of the first ink to be ejected in the first half scans.