Canon printer PIXMA MG6821 User Manual

MediumIt is recommended that you normally select this setting.
High Select this to reduce large dust particles and scratches; however, evidence of the reductionprocess may remain or delicate parts of the image may be removed.
Important

When you set the Gutter Shadow Correction  setting in the preview image, the result will be reflected.
Preview the effects before scanning, as results vary depending on the type of document and how it is pressed.
Unclear or blurred text/lines caused by curved pages are not corrected.
None Gutter shadow will not be corrected.
Low Select this when the effect level is too strong with the medium setting.
Medium It is recommended that you normally select this setting.
High Select this when the effect level is...

Adjusting Cropping Frames (ScanGear)
764 

Color Adjustment ButtonsThe Color Adjustment Buttons allow you to make fine corrections to the image brightness and color tones
including adjustments to the image's overall brightness or contrast and adjustments to its highlight and
shadow values (histogram) or balance (tone curve).
Important

 (Histogram)
A histogram allows you to see the data concentration at each brightness level of an image. You can specify the brightest level (highlight) and darkest level (shadow) within an image, cut the levels and expand the middle of the tonal range of the image.
Adjusting Histogram
 (Tone Curve Settings)
Adjust the brightness of an image by selecting the type of graph (tone curve) showing the balance of
tone input and output. You can make fine adjustments to the brightness of a specific area....

Enter Setting Name  and click Add; the name appears in  Tone Curve Settings List  or Threshold
Settings List . Click Save to save.
To delete an item, select it in  Tone Curve Settings List or Threshold Settings List  and click Delete.
Click  Save to save the settings displayed in  Tone Curve Settings List or Threshold Settings List .
You can load and apply the saved tone curve/threshold settings to a preview image. To load the settings, select the saved item from the pull-down menu.
Note

Preferences Dialog BoxIn the  Preferences  dialog box, you can make advanced settings to ScanGear (scanner driver) functions via
the  Scanner , Preview , Scan , and  Color Settings  tabs.
Click  Preferences...  in the ScanGear screen to open the  Preferences dialog box.
Scanner Tab
Allows you to set the auto power settings, specify the folder in which to save images temporarily, and
set the music file to play during or at the end of a scan.
Preview Tab
Allows you to select what to do with Preview when...

Scanner TabOn the  Scanner  tab, you can specify the following settings.
Important

Refer to "Function Support List by Model (Auto Power Off)" to check if your model supports the
Auto Power Off function.
Quiet Settings The silent function allows you to reduce the operating noise of this machine. Use this when you wish toreduce the operating noise such as when scanning or printing at night.
Click  Settings...  to set the quiet mode.
Note