| 摘要 |
An ink supplying device and an inkjet image forming apparatus including the same. The ink supplying device includes an ink containing unit, a printhead forming an image by ejecting ink onto a printing medium, the ink flowing from the ink containing unit into the printhead through an ink path, and an ultrasonic wave generator which is installed in one side of the ink containing unit and generates ultrasonic waves to remove gas from ink contained in the ink containing unit. Accordingly, since the gas is separated from the ink using ultrasonic waves without heating the ink, the temperature of ink is not increased, and thus, ink properties are not changed. Furthermore, the gas is removed from the ink while the ink passes through an air purging tube, and hence, the gas is prevented from being re-absorbed into the ink. That is, by removing bubbles and gas existing in the ink, an ejecting failure during ejection of ink droplets can be prevented, and thus, printing quality can be improved.
|
