Canon printer PIXMA MX490 User Manual

Output Settings
Output Settings allows you to set the following items:
Output Resolution Select the resolution to scan at.
The higher the resolution (value), the more detail in your image. Select a resolution from the options displayed by clicking the button, or enter a value in 1 dpiincrements.
Refer to "Resolution" for your model from Home of the  Online Manual for details.
When Select Source is Platen:
You can enter a value within the range of 25 dpi to 19200 dpi.
When Select Source is...

In whole image view:
When no cropping frame is displayed, the entire Preview area will be scanned. When a cropping
frame is displayed, the portion within the cropping frame will be scanned.
Note
•
To enlarge/reduce the scanned image, enter values into  (Width) and  (Height) in
Output Settings  or specify a value (by 1 %) for  %. Although the maximum value available for
%  depends on the  Output Resolution , it can be specified for up to 19200 dpi (the maximum
available output resolution).
Paper Size (L,...

Note•
Refer to "Adjusting Cropping Frames (ScanGear)" for details on cropping frames.
•
For details on whether or how the cropping frame is initially displayed on a preview image, refer to
Cropping Frame on Previewed Images  in "
Preview Tab" (Preferences  dialog box).
 (Switch Aspect Ratio)
Available when  Output Size is set to anything but  Flexible.
Click this button to rotate the cropping frame. Click again to return it to the original orientation.
Data Size The data size when scanned...

Image Settings
Important
•
Do not apply these functions to images without moire, dust/scratches, or faded colors. The color tone
may be adversely affected.
•
Image correction results may not be reflected in the preview image.
Note
•
Selectable settings depend on  Color Mode settings.
•
Scanning may take longer than usual when you use  Image Settings.
Image Settings  allows you to set the following items:
Image Adjustment When Image Adjustment is set, the brightness of the specified portion of the image...

•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...

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
•
This function may not be effective for some types of photos.
Note
•
It is recommended that you select  None when scanning printed materials.
Fading Correction Use this function to correct photos that have faded with time or have a colorcast. "Colorcast" is...

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)
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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
•
The Color Adjustment Buttons are not available when you select  Color Matching on the Color
Settings  tab of the  Preferences  dialog box.
Note
•
Selectable settings depend on  Color Mode settings.
•
When you...

 (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....