Patent ID: 8292389
Filing Date: 2012-10-23
Classification: B41J

Abstract:
1. A recording control system controlling an inkjet recording operation for recording an image by controlling a recording head based on image data indicating the image, the recording head having a plurality of nozzle rows and being configured to be capable of scanning in a first direction and a second direction opposite to the first direction, the plurality of nozzle rows corresponding to a plurality of colors, each nozzle row including a plurality of nozzles that are arranged in a direction intersecting with the first and second directions and that are configured to eject ink of corresponding color, the image including a plurality of pixels, the image data having a plurality of sets of pixel data corresponding to the plurality of pixels, each set of pixel data including a pixel value representing color of a corresponding pixel, the recording control system comprising: a setting unit that sets, in the image, a first region and a second region adjacent to the first region, that sets a detection region in one of the first and second regions, and that sets a plurality of representative pixels in the detection region, the plurality of representative pixels being a part of the pixels in the detection region, a number of the plurality of representative pixels being smaller than a total number of the pixels existing in the detection region, a selecting unit that selects at least one representative pixel among the representative pixels; a determining unit that determines whether a pixel value of the selected at least one representative pixel falls within a first pixel value range; and a control unit that controls the recording head to eject ink based on pixel data corresponding to pixels in the first region while controlling the recording head to scan in the first direction such that the recording head records the image in the first region, the control unit controlling the recording head to eject ink based on pixel data corresponding to pixels in the second region while controlling the recording head to scan in the first direction such that the recording head records the image in the second region when the determining unit determines that the pixel value of the selected at least one representative pixel falls within the first pixel value range, the control unit controlling the recording head to eject ink based on pixel data corresponding to pixels in the second region while controlling the recording head to scan in the second direction such that the recording head records the image in the second region when the determining unit determines that the pixel value of at least one of the selected at least one representative pixel does not falls within the first pixel value range, wherein the pixel value indicates a hue value representing hue of the color of the corresponding pixel and a brightness value representing brightness of the color of the corresponding pixel, wherein the determining unit determines that the pixel value of the selected at least one representative pixel falls within the first pixel value range when the determining unit determines that a first condition that a hue value falls within a predetermined hue range is satisfied for the selected at least one representative pixel and whether a second condition that a brightness value falls within a predetermined brightness range is satisfied for the selected at least one representative pixel, and wherein the determining unit determines that the pixel value of at least one of the selected at least one representative pixel does not falls within the first pixel value range when the determining unit determines that at least one of the first and the second condition is not satisfied for at least one of the representative pixels.