Patent ID: 7682013

Claim:
An inkjet recording apparatus comprising: a carriage movable transversely to a conveying direction of a recording medium; a color ink recording head mounted on the carriage to jet color ink toward a recording medium; an invisible ink recording head mounted on the carriage to jet invisible ink toward the recording medium, the invisible ink recording head mounted on the carriage at a downstream side in the conveying direction with respect to the color ink recording head, the invisible ink recording head having a length which is twice as long as a length of the color ink recording head in the conveying direction; a light irradiating device mounted on the carriage to irradiate light toward the recording medium to cure the ink, the light irradiating device comprises a first light irradiating device and a second light irradiating device which are disposed on opposite sides of the carriage in a transverse direction to the conveying direction, the color ink recording head and the invisible ink recording head placed between the first and second irradiating device, one of the first and second irradiating device has a length equal to or longer than a sum of the length of the color ink recording head and the length of the invisible ink recording head in the conveying direction; a moving section to reciprocally move the carriage transverse to the conveying direction; a conveying section to convey the recording medium in the conveying direction; and a control section to perform a control so that while the carriage is moved, the color ink recording head jets the color ink, then the light irradiating device irradiates the color ink with light, and thereafter the invisible ink recording head jets the invisible ink, then the light irradiating device irradiates the invisible ink with light after a lapse of a certain time from the invisible ink jetting.