| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a picture writing apparatus and an image formation system which perform the conversion of 1.5 times density at a high speed and reduce a degradation in image quality. <P>SOLUTION: The writing section 500 has a plurality of light-emitting element arrays LPH 503, a LED writing control circuit 505 and a density conversion part 502. The density conversion part 502 performs the conversion of 1.5 times density and accumulates the converted binary image data in n memories by n lines at a time and forms the picture in which a line width in the case of a vertical line straddling the joint of matrices in the main scan direction was corrected while performing a pattern recognition processing of the image data of the n memories for every n×n matrix, and then performs the correction of the line width of the portion. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
