| 摘要 |
PURPOSE: A printer head is provided to selectively perform front printing or rear printing since the spraying order or level of ink can be adjusted by movement of a nozzle spraying background-color ink. CONSTITUTION: A printer head(300) comprises a first nozzle(330), a second nozzle(320), a third nozzle(310) and a fourth nozzle(340). The first nozzle sprays a plurality of colors of ink. The second nozzle sprays background-color ink before or after spraying of the first nozzle. The second nozzle is installed to be able to move to the front or rear of the first nozzle. A cover is mounted on the second nozzle and comprises an elongated hole guiding the movement of the second nozzle. The background color comprises at least one of white, gold and silver. A cover is mounted on the third nozzle and comprises an elongated hole guiding the movement of the third nozzle. A cover is mounted on the fourth nozzle and comprises an elongated hole guiding the movement of the fourth nozzle.
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