8825/8830 DDS User Guide/9Getting to know the 8825/8830 DDSThe ScannerDDS User InterfaceOption and Feature keys (continued)Image QualityThe Image Quality portion of the DDS User Interface allows the operator tomake corrective adjustments to the image and extract the best possible copyquality from an original document.The Type area allows selection of Mixed, Photo, or Line documents. SelectLine (factory default) for an image containing text, line art, or a mixture ofthese. Select Photo when the document contains a grayscale or colorimage, such as a photograph. Select Mixed if the document contains amixture of photographic and line images, or halftone images.Note: the scanning speed changes, depending on the selection. The speedsare shown in Table 2.Table 2. Scanning Resolutions and Speeds7356 7346Mode DPI PixelDepthMinIPS/cm/sMaxIPS/cm/sMinIPS/cm/sMaxLine (copy modeor scan mode)400 1 bit 3.00/7.623.00/7.622.00/5.082.00/5.08Line (scan mode) 300 1 bit 4.00/10.164.00/10.162.67/6.782.67/6.78Line (scan mode) 200 1 bit 6.00/15.246.00/15.244.00/10.164.00/10.16Line (scan mode) 100 1 bit 6.00/15.246.00/15.244.00/10.164.00/10.16Mixed (copy mode) 300 4 bit 1.0/2.544.00/10.160.89/2.032.67/6.78Photo (copy mode) 200 8 bit 2.00/5.086.00/15.242.00/5.084.00/10.16Speeds are given in inches per second (IPS) and cm per second (cm/s).Speeds for Photo and Mixed modes are given for 36 in. (91.44) wideoriginal documents; speeds are faster for narrower documents. Fordocuments 8.5 inches wide, speeds up to 6.0 in. (15.24 cm) per second maybe obtained in Photo mode, and up to 4.0 in. (10.16 cm) for Mixed mode.
