Patent ID: 8982422
Filing Date: 2015-03-17
Classification: G03G,H04N

Abstract:
1. An image forming apparatus for forming an image in accordance with light caused to be emitted from a light source, the image forming apparatus comprising: a digital half-toning unit configured to convert a uniform-pixel-value region formed with pixels having a same pixel value of image data to a parallel-line pattern formed with a plurality of parallel lines extending obliquely with respect to a direction, in which pixels are arrayed, thereby expressing each gray level of the image data as an area percentage; a modulated-signal generating unit configured to generate a modulated signal by modulating the image data, in which each gray level is expressed as an area percentage, with a clock signal; a light-source driving unit configured to drive the light source according to the modulated signal; and an edge control unit configured to narrow a to-be-illuminated region, the to-be-illuminated region being to be illuminated by light to be emitted from the light source, in each of edge neighborhoods of the plurality of lines constituting the parallel-line pattern while increasing intensity of the light to be emitted from the light source.