Method and system for high speed printing using drop-on demand technology that compensates for droplet satellites

摘要

Methods and systems for using ink-jet technology for high speed printing are provided. Print growth between pixels in an image is significantly reduced or eliminated by adjusting the printing of the pixels based on the status of the following pixel to be printed, i.e., whether the following pixel is either black or white. If a black pixel, formed by a plurality of columns of dots, is being followed by a white pixel, the column of dots closest to the white pixel will not be printed, and the column of dots in the black pixel next to the column of dots closest to the white pixel are staggered such that the pixel appears filled despite the absence of the column of dots closest to the white pixel and will still be properly read as a black pixel by a scanner reading the image.

主权项

1. A method for printing an image on a medium using an ink-jet print head, the image including a plurality of pixels each of which may be printed by the ink-jet print head depositing a plurality of ink drops arranged in a plurality of spaced columns, the method comprising:
determining if a current pixel of the image is to be printed; if a current pixel is to be printed, determining if a following pixel adjacent to the current pixel is to be printed; if the following pixel adjacent to the current pixel is not to be printed, adjusting printing of the current pixel such that ink drops from the ink-jet print head will be ejected to form all columns in the current pixel except for a column nearest to the following pixel adjacent to the current pixel and staggering at least a portion of the plurality of ink drops that form a column adjacent to the column nearest to the following pixel adjacent to the current pixel; and printing the current pixel as adjusted.