| 摘要 |
The present invention addresses the problem of making it possible to obtain the necessary ultraviolet ray intensity at low cost without reducing printing speed. A solution is to provide two rows of rails each on both the left and right sides of the print head (105) and to dispose three LED modules (1) in the inner row (In) of said rails and one LED module (1) in the outer row (Ou). Said LED modules (1) are capable of moving in the rails in a secondary scanning direction. Because the LED modules (1) are adjacent in the main scanning direction at position (D), the total quantity of light is "200." At the other positions, the quantity of light is "100." With the present invention, printing speed is not reduced because a curing area can be configured at a selected position and the necessary quantity of light obtained by providing LED modules (1) capable of moving in the outer row (Ou). Additionally, the number of LED modules (1) can be limited and the cost of the ultraviolet lamp (104) of the carriage (102) reduced. |
