Patent ID: 7798604
Filing Date: 2010-09-21
Classification: B41J

Abstract:
1. An inkjet printer, comprising: a printing unit configured to print an image on a print medium by ejecting ink from a printing head having at least first ejection port arrays and second ejection port arrays based on print permission rates determined in advance for the respective first and second ejection port arrays while moving the printing head with respect to the print medium, wherein the first ejection port arrays are for ejecting a first kind of ink and the second ejection port arrays are for ejecting a second kind of ink, wherein the first and second ejection port arrays are arranged in a moving direction, and wherein a distance between the first ejection port arrays is shorter than a distance between the second ejection port arrays, and a controller configured to cause the printing unit to print such that a difference between print permission rates of an end ejection port and a center ejection port in at least one of the first ejection port arrays is larger than a difference between print permission rates of an end ejection port and a center ejection port in at least one of the second ejection port arrays.