| 摘要 |
<p>PURPOSE:To realize dot density of 600 DPI or more and to perform the sharp and dense output of CAD/CAM, CG, business graphics, medical machinery or measuring machinery, by arranging tow series of LED array heads in a zigzag pattern. CONSTITUTION:LED array heads 1L, 1R are arranged in a two-series zigzag pattern. The toner remaining on the surface of an org. photosensitive body 5 is scraped off by a cleaner unit 4 and said surface is destaticized by a destaticizing lamp 3 to become a neutral state. Further, the photosensitive body 5 is uniformly charged by a main charger 2 and printing data are written in the charged surface by the heads 1L, 1R. The dots by the head 1L become a writing state 10 and the dots written next by the head 1R become a writing state 11. Since the dots become zigzag arrangement in this state, the angle 13 of rotation of the photosensitive body 5 is corrected by the quantity corresponding to the shift of the optical axes of the heads 1L, 1R on the side of a printer control part in order to obtain the density of 600 DPI in a writing state to obtain the writing state 12 of 600 DPI.</p> |
