Patent ID: 9022506
Filing Date: 2015-05-05
Classification: B41J

Abstract:
1. A print control device which causes a monochrome image to be printed by discharge of a black ink from a nozzle for discharging an ink, the control device comprising a region determining unit for determining a plurality of regions of an image, each region having a number of pixels, wherein a chromatic color ink in addition to black ink is discharged in the plurality of regions where an amount of use of the black ink indicated by the monochrome image data representing the monochrome image is equal to or higher than a predetermined threshold value and only black ink is discharged in the regions where an amount of use of the black ink indicated by the monochrome image data representing the monochrome image is less than a predetermined threshold and wherein the regions are determined by calculating a number of dot-on pixels compared to the number of pixels in a region.