Patent ID: 6371609
Filing Date: 2002-04-16
Classification: B41J

Abstract:
A recording apparatus comprising:a recording head having a first line of nozzles for ejecting a first ink, a second line of nozzles for ejecting a second ink and a third line of nozzles for ejecting a liquid that reacts with the first and second inks, the first, second and third lines of nozzles being arranged in substantially the same direction; a scanning means for moving the recording head in a predetermined direction, different from the direction of the first, second, and third lines of nozzles to scan over a recording medium; a feeding means for feeding the recording medium in a direction substantially perpendicular to the direction of the recording head; a recording means for driving the recording head, to form an image on the recording medium, under a control of an ink ejection control means and a liquid ejection control means, the ink ejection control means controls ejection timings of the inks from the first and second lines of nozzles at predetermined timings so that an image region formed of the first ink on the recording medium is disposed between alternate image regions formed of the second ink, the liquid ejection control means controls ejection timings of the liquid from the third line of nozzles at predetermined timings so that ends of a ejection region of the liquid are located within substantially the same interval as an end-to-end interval of the image region and that the ejection region is shifted to a plurality of locations; a memory means for storing a plurality of ejection timings of the liquid that correspond to the plurality of locations; and a setting means for setting the ejection timing of the liquid optimum, by entering some of the plurality of ejection timings to eject the liquid from the third line of nozzles, to eject the liquid to an area between the ends of the image region and the alternate image regions at which a bleeding of the first ink and the second ink can hardly result.