Patent ID: 8911044
Filing Date: 2014-12-16
Classification: B41J

Abstract:
1. An inkjet recording apparatus comprising: a plurality of inkjet heads of a multi-drop method, each of which controls a diameter of each ink dot formed on a recording medium by changing a number of ink drops to sequentially eject; a first controller which controls ejection of the ink drops from a first inkjet head for ejecting a first ink for which print resolution is required, among the plurality of inkjet heads, in a manner that the number of the ink dots formed in a main scanning direction as a printing direction during relative movement between the recording medium and the inkjet heads is increased, and that the number of ink drops ejected for each one of the ink dots is decreased; and a second controller which controls ejection of the ink drops from a second inkjet head for ejecting a second ink for which coverage over a recording surface of the recording medium is required, among the plurality of inkjet heads, in a manner that the ink drops in the main scanning direction are ejected at a resolution lower than the first inkjet head, that the ink drops in a sub-scanning direction which is perpendicular to the main scanning direction are ejected at the same resolution as the first inkjet head, that the number of the ink dots formed in the main scanning direction is decreased, and that the number of ink drops ejected for each one of the ink dots is increased.