Nozzle control device and method

摘要

A nozzle control method and a nozzle control device are provided. The nozzle control method includes: discriminating between the nozzle to eject the ink droplets from the nozzle not to eject the ink droplets; and generating a pressure wave with a predetermined amplitude in the nozzle not to eject the ink droplets when the ink droplets are ejected from the nozzle to eject the ink droplets. Accordingly, it is possible to produce a color filter with a uniform thickness regardless of the print pattern. The ink droplets with a constant size can be ejected when the nozzle pitch of the print head is not the same width as the print pattern width. Therefore, the print quality is improved by a uniformizing ink thickness in which the print job is performed to the print medium regardless of the number of nozzles ejecting the ink droplets concurrently.