5-55.2 SCANNING PARAMETERS & IMAGE CONTROLResolution: The number of dpi (dots per inch) that the QMSSC-200 uses for a scan. Usually the greater thenumber, the higher the resolution. Yet up to acertain level, the resolution will not be visuallyincreased but the disk space will be increased.Brightness: Adjusts the lightness or darkness of an image.The higher the value, the brighter the image.Contrast: Adjusts the range between the darkest and thelightest shades in the image. The higher thecontrast, the bigger the different gray scales.ResolutionBrightnessContrast