Canon Pixma MG6821 Online Manual

Also see for MG6800 Series: Getting started Online manual Getting started Getting started

• You can set this setting when Recommended is selected on the Color Settings tab of thePreferences 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, setImage Adjustment to None.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.OFFShow-through will not be reduced.ONSelect this to reduce show-through in duplex documents or lighten the base color. It isrecommended that you normally select this setting.Important• Reduce Show-through can be set when Recommended is selected on the Color Settings tab ofthe Preferences dialog box and Document or Magazine is selected for Image Adjustment.Unsharp MaskEmphasizes the outline of the subjects to sharpen the image when scanning photos.OFFUnsharp Mask will not be applied.ONEmphasizes the outline of the subjects to sharpen the image. It is recommended that you normallyselect this setting.DescreenPrinted photos and pictures are displayed as a collection of fine dots. "Moire" is a phenomenon whereuneven gradation or a stripe pattern appears when such photos or pictures printed with fine dots arescanned. Descreen is the function for reducing this moire effect.OFFMoire will not be reduced.ONReduces 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. Inthat case, set Unsharp Mask to OFF.Reduce Dust and ScratchesScanned photos may contain white dots caused by dust or scratches. Use this function to reduce suchnoise.NoneDust and scratches will not be reduced.LowSelect this to reduce small dust particles and scratches. Large ones may remain.761