Canon PIXMA MG6821 User Manual - Page 761

• You can set this setting when Recommended is selected on the Color Settings tab of the Preferences dialog box. Note • If the image is not adjusted properly with Auto, specify the document type. • The color tone may change from the source image due to the Image Adjustment. In that case, set Image Adjustment to None. Reduce Show-through Use this function to reduce show-through in duplex documents or lighten the base color in recycled paper and other colored paper when scanning documents. OFF Show-through will not be reduced. ON Select this to reduce show-through in duplex documents or lighten the base color. It is recommended that you normally select this setting. Important • Reduce Show-through can be set when Recommended is selected on the Color Settings tab of the Preferences dialog box and Document or Magazine is selected for Image Adjustment. Unsharp Mask Emphasizes the outline of the subjects to sharpen the image when scanning photos. OFF Unsharp Mask will not be applied. ON Emphasizes the outline of the subjects to sharpen the image. It is recommended that you normally select this setting. Descreen Printed photos and pictures are displayed as a collection of fine dots. "Moire" is a phenomenon where uneven gradation or a stripe pattern appears when such photos or pictures printed with fine dots are scanned. Descreen is the function for reducing this moire effect. OFF Moire will not be reduced. ON Reduces moire. It is recommended that you normally select this setting. Note • Even if Descreen is set to ON, some moire effects may remain if Unsharp Mask is set to ON. In that case, set Unsharp Mask to OFF. Reduce Dust and Scratches Scanned photos may contain white dots caused by dust or scratches. Use this function to reduce such noise. None Dust and scratches will not be reduced. Low Select this to reduce small dust particles and scratches. Large ones may remain. 761