Patent ID: 8662655
Filing Date: 2014-03-04
Classification: B41J

Abstract:
1. An inkjet printer comprising: a guide rail that faces a medium support member and that is relatively movable in a moving direction with respect to a printing medium supported by the medium support member, the guide rail extending in a scanning direction substantially perpendicular to the moving direction; a head device comprising: an intensity controller configured to independently control intensities of ultraviolet radiations output from the first ultraviolet radiator and the second ultraviolet radiator, the intensity controller being configured to independently control, depending on a direction of movement of the carriage, the first ultraviolet radiator and the second ultraviolet radiator to output ultraviolet radiations having intensities different from each other while the carriage moves in the scanning direction, wherein the intensity controller is configured to control the intensities such that a first ratio of an intensity of an ultraviolet radiation output from the first ultraviolet radiator to an intensity of an ultraviolet radiation output from the second ultraviolet radiator when the carriage moves to the first side is substantially equal to a second ratio of an intensity of an ultraviolet radiation output from the second ultraviolet radiator to an intensity of an ultraviolet radiation output from the first ultraviolet radiator when the carriage moves to the second side, and wherein the ultraviolet irradiation output from the first ultraviolet radiator and the ultraviolet irradiation output from the second ultraviolet radiator are both greater than zero when the carriage moves to the first side and when the carriage moves to the second side.