| 摘要 |
PROBLEM TO BE SOLVED: To provide an inkjet printer which suppresses color shift and also suppresses bleeding of a color in ultraviolet curing ink. SOLUTION: Printing heads 2 discharge ink to be cured by ultraviolet irradiation toward a printing surface of an printing object 1. The printing heads 2 are constituted of head groups 4 in one set of two heads, and are mounted to a carriage 12 together with irradiation heads 3 having an ultraviolet luminescence diode as a light source. The carriage 12 reciprocates in a direction perpendicular to the conveying direction of the printing object 1. The irradiation heads 3 are arranged at both ends of the carriage 12 in a direction where the carriage 12 reciprocates, and between the adjacent head groups 4, respectively. The printing heads 2 discharge ink to the printing object 1 in coming and going ways of the carriage 12. The irradiation head 3 between the head groups 4 is always lit, and the irradiation heads 3 at both ends of the carriage 12 are alternately lit in the coming and going movements of the carriage 12. COPYRIGHT: (C)2009,JPO&INPIT
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