• How to place the item depends on your model and the item to be scanned.Unsharp MaskEmphasizes the outline of the subjects to sharpen the image.DescreenReduces moire patterns.Printed materials are displayed as a collection of fine dots. "Moire" is a phenomenon where unevengradation or a stripe pattern appears when such photos or pictures printed with fine dots are scanned.Important• When enabling Descreen, disable Unsharp Mask. If Unsharp Mask is enabled, some moireeffects may remain.Note• Scanning takes longer than usual when you enable Descreen.Reduce Show-throughUse this function to reduce show-through in duplex documents or lighten the base color in recycledpaper and other colored paper when scanning documents.Important• Reduce Show-through is effective only when Document or Magazine is selected for ImageAdjustment.Calibrate before each scanCalibrates the scanner every time before trial scanning and scanning, to reproduce correct color tonesin scanned images.Note• Calibration may take time depending on your computer.545