Patent ID: 6837574
Filing Date: 2005-01-04
Classification: B41J

Abstract:
1. A line scan type ink jet recording device comprising a recording head having plurality of nozzle orifices aligned in a row in a first direction and ink chambers that are opened to the nozzle orifices, the recording head controlling to eject and not eject ink droplets from the nozzle orifices by generating pressure in ink in the ink chambers according to a recording signal, the recording head being disposed so that the nozzle orifices confront a recording medium, and the recording medium being moved relative to the recording head in a second direction to impinge the ink droplets at predetermined pixel positions on a predetermined main scan line for forming a recorded image by recording dots formed on the recording medium by the impinged ink droplets, a deflection means for deflecting ink droplets ejected from the nozzle orifices in a direction that is perpendicular to the main scan line; and an overlap recording control means for controlling ejection timing of and deflecting the ink droplets so that a plurality of ink droplets ejected from a plurality of nozzle orifices impinge in partial overlap on the same pixel position.