Epson 1250 Technical Brief (Scanners) - Page 4

Image Quality-Epson ColorTrue® Imaging System (cont.) Through a combination of these hardware, optics, and processing features, the Epson ColorTrue Imaging System and Epson ColorTrue II Imaging System deliver scanned images with: Smooth gradations Accurate colors Smooth edges and minimal color fringing Greater detail in shadows Greater detail in highlights Sharp image quality without distortion 1. Hardware components: Epson scanners use a precise scan carriage with better motors to achieve subscan resolutions that are double or quadruple the scanner's optical resolution. Additionally, Epson scanners capture Red, Green, and Blue simultaneously, versus other scanners that use one-pass scanning but alternate Red, Green, and Blue lights for each line of a scan. Epson advantages are:  Better color registration  Faster scanning speeds  Higher quality sub-scan resolutions Epson Method (1/2 or 1/4 step carriage movement) Simultaneous RGB Capture One pass Single-Pass Alternate RGB Method (1/2 step carriage movement) Red Capture Green Capture Blue Capture One pass 2. Optics: Epson scanners use custom lenses that are designed specifically to work with Epson technology and the scanner's CCD. These lenses feature:  Larger "sweet spot" and precision lenses for reduced distortion  Accurately aligned lens elements to control sharpness  Glass lenses (versus plastic lenses used by many competitors) which offer better reflective qualities, providing greater image quality.  Better image quality than competitive off-the-shelf lenses because Epson scanners feature custom-made lenses that match the CCD. Small "sweet spot" can allow edge distortion Larger "sweet spot" minimizes distortion Scanner Technical Brief-Page 4 6/07