Image Type

Choose a grayscale or binary (black and white) scanning format in the Image Type drop-down list box. Select the format that is best suited to your application. Grayscale provides better image quality but requires more scanning time and memory.

Resolution (DPI)

GrayscaleBinary

NOTE: Additional memory may be required for grayscale scanning, depending on the selected resolution and paper size. Refer to the chapter entitled Memory Requirements for more information about memory.

Resolution or dots per inch (dpi) indicates the scanning resolution, which largely determines the quality of the scanned image. The greater the resolution, the better the reproduction. However, scanning at a higher resolution also increases scanning time and file size. This function sets the resolution of the main scan and sub-scan areas. The industry standard is 200 dpi (about 8 pixels/mm).

You can choose a preset value in the Resolution box or type the desired value. The default value is 300 dpi. Following are the available resolutions:

∙Scanner 1500—100-600 dpi (1 dpi/step)

∙Scanner 2500—100-600 dpi (1 dpi/step)

NOTE: Changing the resolution affects the Area, Region, Halftone (Dither), and Barcode settings. Specify the resolution before you select these functions.

A-63055 December 1999

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