Patent ID: 6652066
Filing Date: 2003-11-25
Classification: B41J

Abstract:
An ink jet printing apparatus using a printing head and relatively scanning the printing head to a printing medium to perform printing by ejecting a plurality of colors of ink from the printing head, said apparatus comprising:determining means for determining whether to reduce an amount of ink to be ejected to a vicinity of a joint in a band on the printing medium, the band being defined by the joint and defined as an area printed by scanning the printing head, based on printing method information added to printing data; and printing control means for when said determining means determine to reduce the amount of ink, correcting the printing data so that the amount of ink ejected to a predetermined area in the vicinity of the joint during the scanning is decreased at a decreasing rate corresponding to an amount of ink to be ejected based on the printing data, and controlling said printing apparatus to perform printing according to a printing method designated by the printing method information, based on the corrected printing data, and when said determining means determine not to reduce the amount of ink, controlling said printing apparatus to perform printing according to a printing method designated by the printing method information, based on the printing data without executing correcting of the printing data for decreasing an amount of ink ejected during the scanning.