Patent ID: 7249836

Claim:
An ink jet printer comprising: a recording head, having a nozzle, for jetting ink to be cured by irradiating with an ultraviolet ray from the nozzle, the ink jetted from the nozzle arriving at a recording medium; and an ultraviolet ray irradiating apparatus for irradiating the ink jetted by the recording head with a plurality of ultraviolet rays, an image being formed by irradiating the ink of the recording medium with the ultraviolet rays of the ultraviolet ray irradiating apparatus and curing the ink, wherein: the ultraviolet ray irradiating apparatus comprises at least one ultraviolet ray irradiating device provided with a plurality of ultraviolet ray sources respectively emitting a plurality of ultraviolet rays of a plurality of light emitting wavelength peaks different from one another; and at least one ultraviolet ray source of the ultraviolet ray having a shorter wavelength component at the light emitting wavelength peak is arranged at a position adjacent to and closer to the recording head than that of the other ultraviolet ray source.