Patent ID: 7726768
Filing Date: 2010-06-01
Classification: B41J

Abstract:
1. An ink jet printing apparatus which prints an image on a printing medium by ejecting inks having different lightness on the printing medium by using an ink jet printing head capable of ejecting the inks, and which can preliminarily eject the inks on the printing medium while printing the image, the ink jet printing apparatus comprising: judgment means for judging whether or not, onto an area including a position where one ink is to be preliminarily ejected and the vicinity of the position, another ink of higher lightness than that of the one ink to be preliminarily ejected is to be ejected; and ink-application-amount reduction means for performing a process of reducing the amount of the another ink applied for forming an image in the area in a case that an affirmative judgment is made by the judgment means.