Method and apparatus to enhance printing quality of laser printer

摘要

A method of and apparatus to enhance the printing quality of a laser printer, in which a window to define a binary image is generated using a plurality of Ipi values and angles of a dithering mask and the quality of a non-edge region is improved. The method of enhancing the printing quality of a laser printer using a 1-bit gray process includes: receiving a binary image, a dithering mask, and a plurality of values of Ipi and angles of the dithering mask, wherein Ipi indicates the number of lines per inch; generating a window having a size of N×N pixels considering the received values of Ipi and angles; determining whether a binary image of N×N pixels, which is defined by the window, is an edge region or not using the window and the dithering mask; and enhancing the quality of a binary image of N×N pixels determined to be a non-edge region. Using a plurality of Ipi values and angles of the dithering mask improves the quality of color images, which require several channels for printing.