Software Setup 71Chapter 3Image QualityWhen 400 or 600 dpi resolution is selected, you can enable this and selecteither [Speed Priority] or [Image Quality Priority Image].[Speed Priority]This mode gives priority to scanning speed, and generates 400 or 600 dpiimages from images scanned at 300 dpi.Although scanning speed is fast, image quality is slightly reduced.[Image Quality Priority]This mode gives priority to image quality, and scans at 600 dpi.When 400 dpi resolution is selected, 400 dpi images are generated fromimages scanned at 600 dpi.☞ Scanning with 24-bit Color is disabled when [Image Quality Priority] isselected. Also, an error may be displayed with some combinations withother settings, in which case [Speed Priority] should be selected, or othersettings changed.[Scan Options] (TWAIN driver only)Specify operation when scanning continuously with a TWAIN-compatibleapplication.[Standard image]Eject a scanned page before scanning the next page.[Scan Ahead]Scan pages continuously, so scanning speed is faster than [Standard image].[Scan Single Page]The [Scanning Side] setting on the [Basic] tab sheet becomes [Simplex], andone page is scanned.When [High Quality Moire Reduction] is selected while Page Size is set to[Auto-detection], Mode is set to [24-bit Color], and Scanning Side is set to[Duplex] all at the same time, a portion of the document may not be scanneddue to insufficient memory on the scanner. If this occurs, lower the imagequality by selecting [Speed priority], or change the Scanning Side setting to[Simplex].[Area] ButtonOpen the [Scan Area] dialog box to specify the area to scan. (See “[Scan Area]Dialog Box,” on p. 73.)The [Area] button is not displayed if the application program provides its ownfunction to specify scan area.