Xerox P8EX Spire CXP8000 Color Server - User Guide - Page 353

Default Color Flow 339 Screening Screening converts CT (Continuous Tone) and LW (Line Work) images into information (halftone dots) that can be printed. The human eye "smooths out" this information, which seems visually consistent with the original picture. Thus, the more lines per inch, the more natural the image appears. Screening is achieved by printing dots in numerous shapes or lines in an evenly spaced pattern. The distance between the screen dots or lines is fixed and determines the quality of the image. Printers can work with even amounts of toner and still produce a wide range of colors when you use screening. The darker the color, the larger the dot. The Spire CXP8000 color server supports six types of screening: • Automatic applies two types of screens: For CT, the system uses dot type screen of 200 lpi. For LW (text and line-art elements), the system uses line type screen of 200 lpi.