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Canon Maxify Mb5020 User Guide

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    							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 is optimized. Images
    can be adjusted according to the automatically detected document type or the specified document type. The result of the adjustment will be reflected in the entire image.
    None Image Adjustment will not be applied.
    Auto Applies Image Adjustment by automatically detecting the document type. It is recommended that
    you normally select this setting.
    Photo Applies Image Adjustment suitable for photos.
    Magazine Applies Image Adjustment suitable for magazines.
    Document Applies Image Adjustment suitable for text documents.
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    							Important•
    You can set Image Adjustment  after preview.
    •
    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 isrecommended 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.
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    							LowSelect this to reduce small dust particles and scratches. Large ones may remain.
    Medium It is recommended that you normally select this setting.
    High Select this to reduce large dust particles and scratches; however, evidence of the reduction
    process 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 aphenomenon where a specific color affects the entire picture due to the weather or ambient strong
    colors.
    None Fading Correction will not be applied.
    Low Select this to correct a small amount of fading and colorcast.
    Medium It is recommended that you normally select this setting.
    High Select this to correct a large amount of fading and colorcast. This can affect the tone of the image.
    Important
    •
    You can set  Fading Correction  after preview.
    •
    You can set this setting when  Recommended is selected on the  Color Settings tab of the
    Preferences  dialog box.
    •
    Correction may not be applied properly if the scan area is too small.
    Grain Correction Use this function to reduce graininess (roughness) in photos taken with high-speed or sensitized film.
    None Graininess will not be reduced.
    Low Select this when the photo is slightly grainy.
    Medium It is recommended that you normally select this setting.
    High Select this when the photo is very grainy. This can affect the gradation and sharpness of the
    image.
    Important
    •
    Correction may not be applied properly if the scan area is too small.
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    							Gutter Shadow CorrectionUse this function to correct shadows that appear between pages when scanning open booklets.
    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 too weak with the medium setting.
    Important
    •
    You can set  Gutter Shadow Correction  after preview.
    •
    Do not place objects that weigh 4.4 lbs (2.0 kg) or more on the platen. Also, do not press on the
    document with a force exceeding 4.4 lbs (2.0 kg). If you press heavily, the scanner may not work correctly or you might break the glass.
    •
    Align the document with the edge of the Platen. If not, the shadow will not be corrected properly.
    •
    Shadows may not be corrected properly depending on the document. If the page background is notwhite, shadows may not be detected correctly or may not be detected at all.
    •
    While scanning, press down on the spine with the same amount of pressure you used to preview
    the scan. If the binding part is not even, the shadow will not be corrected properly.
     
    •
    How to place the document depends on your model and the document to be scanned.
    Note
    •
    Cover the document with black cloth if white spots, streaks, or colored patterns appear in scan results due to ambient light entering between the document and the Platen.
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    							•If the shadow is not corrected properly, adjust the cropping frame (scan area) on the previewimage.
    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 adjust the image via the Color Adjustment Buttons, the results will be reflected in the preview
    image.
    Click a Color Adjustment Button to set the following items:
     (Saturation/Color Balance)
    Adjust the saturation (vividness) and color tone of the image. Use this function to brighten colors that
    have faded with time or due to colorcast. "Colorcast" is a phenomenon where a specific color affects the
    entire picture due to the weather or ambient strong colors.
    Adjusting Saturation and Color Balance
     (Brightness/Contrast)
    Adjust the brightness and contrast of the image. If the image is too dark or too bright, or if the image
    quality is flat due to lack of contrast, you can adjust the levels of brightness and contrast.
    Adjusting Brightness and Contrast
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    							 (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.
    Adjusting Tone Curve
     (Final Review)
    Make a final check of color adjustments. The final synthesized tone curve and the histogram derived
    from the subsequent image processing will be displayed. There are no settings to make in this screen.
    •
    For a color image, select a color in  Channel to check either  Red, Green , or Blue , or select  Master
    to check three colors together.
    •
    If you place the cursor on the preview image, the portion will be enlarged and its RGB values (only L when  Color Mode  is Grayscale ) before and after the adjustments will be displayed.
     (Threshold)
    Set the boundary (threshold) at which black and white are divided. By adjusting the threshold level, you
    can sharpen text in a document or reduce show-through in newspapers.
    Setting Threshold
    Custom You can name and save a set of tone curve and threshold settings of the Color Adjustment Buttons.
    Select  Add/Delete...  from the pull-down menu; when  Color Mode is set to anything but  Black and
    White , the Add/Delete Tone Curve Settings  dialog box opens; when Color Mode is Black and
    White , the Add/Delete Threshold Settings  dialog box opens.
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    							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
    •
    Save up to 20 items.
    Defaults Reset all adjustments (saturation/color balance, brightness/contrast, histogram, and tone curve).
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    							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 quiet mode, 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 ScanGear is started, how to display cropping frames
    after previewing images, and the cropping size for thumbnails of scanned documents.
    Scan Tab
    Allows you to select what to do with ScanGear after scanning image.
    Color Settings Tab
    Allows you to select how to adjust color, and specify the monitor gamma value.
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    							Scanner TabOn the  Scanner  tab, you can specify the following settings.
    Important
    •
    Available functions and settings vary depending on your scanner or printer.
    Auto Power Settings
    You can set to turn the machine on or off automatically.
    Click  Settings...  to display the  Auto Power Settings  dialog box.
    Note
    •
    If the machine is off or bi-directional communication is disabled, a message may appear because
    the computer cannot collect the machine status. In that case, click  OK to exit ScanGear (scanner
    driver).
    Auto Power On Select  Enable  to turn on the machine automatically when data is received.
    Auto Power Off Specify the amount of time you want to set from the list. When this time lapses without any data
    being received, the machine turns off automatically.
    Important
    •
    When using a network compatible model by connecting to a network, the power does not turn off automatically even if  Auto Power Off is set.
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