DocuMate 252 Scanner User’s Guide 89Scanning with the TWAIN Interface from PaperPortScanning with the TWAIN InterfaceThe TWAIN interface lists the scanning options available withyour Xerox DocuMate 252 scanner.The options on the TWAIN interface are:• Mode—Select a scanning mode:Black&White to scan in black and white. The scanningpixels are all the same size and are either black or white.Use this setting for letters, memos, and other black andwhite material. This scan mode produces the smallest filesize.GreyScale to scan items such as documents containingdrawings or black and white photographs. The scanningproduces an image of up to 256 shades of gray. You canalso scan a color document to turn its colors into grayshades. The file size is about one third that of a color scan.Color to scan magazine articles, photographs, and othercolor images in full color. Color scans have the largest filesize.• Resolution—Drag the slider to the right or left to adjust thedots per inch (dpi) of the resolution. The maximumresolution is 600 dpi; the minimum is 50 dpi. This optiondetermines the amount of detail you can see in the scannedimage. The higher the dpi setting, the sharper and clearerthe scanned image. However, higher dpi settings takelonger to scan and produce larger files for the scannedimages. Usually the higher resolution settings are used forprecision work, such as photographs or fine artwork.
