Canon scanner CanoScan N656U User Manual

							31 chapter 4
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Simple Mode Main Window
In the Simple Mode, only the Simple Mode sheet is available in the main
window. 
Image Type
When you select the Image Type based on how you intend to use the
scanned image, the Color Mode and Resolution settings are selected for
you automatically for optimum scanning results. Here is a summary of
the available Image Type settings for the image Color Mode and
Resolution.
•Color Screen (Color(Photos), 75 dpi):
Use to scan the original as it appears on the monitor.
•Color Photo (Color(Photos),  150 dpi):
Use to scan color photographs.
•Color Photo Fine (Color,(Photos) 300 dpi):
Use to scan color photographs for best quality in the scanned
image.
•BJ Printer (Color(Photos), 360 dpi):
Use to scan a color original that you intend to print on a Bubble Jet
printer for maximum quality in the printed image. 
						

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•B/W Photo (Grayscale, 150 dpi):
Use to scan black-and-white photographs with varying shades of
gray.
•B/W Photo Fine (Grayscale, 300 dpi):
Use to scan black-and-white photographs with varying shades of
gray for best quality in the scanned image.
•Line Art (Black and White, 300 dpi):
Use to scan of a black-and-white original that contains a graphic
illustration.
•Laser Printer (Black and White, 600 dpi):
Use to scan a black-and-white original that you intend to print on a
black-and-white laser beam printer.
•FAX (Text Enhanced(OCR), 200 dpi):
Use to scan an original that you intend to send by facsimile.
•OCR (Text Enhanced(OCR), 300 dpi.):
Use to scan pages of text that you intend to capture with an OCR
software application.
Color Mode
Displays the Color Mode setting for the currently selected Image Type. And
the Mode can be set to one of the settings provided. In this case, a new
Image Type can be saved under a new name.
•Black and White
•Grayscale
•Color (Photos)
•Color (Documents)
•Text Enhanced(OCR) 
						

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•The Text Enhanced (OCR) and Grayscale selections
require more time that the Black and White setting
in order execution digitization of the scanned
images.
•Selecting the Color Mode setting automatically
resets the Advanced Mode Tone tab settings.
•Selecting Black and White or Text Enhanced (OCR)
sets the Resolution setting to 300 dpi. If you select
any setting other than Black and White or Text
Enhanced, the Resolution setting is re-set
automatically to the base setting for the Image
Type selection.  However, if either Black and White
or Text Enhanced (OCR) is selected when ScanGear
CS-U is started and then another Image Type
selected, then the Resolution setting remains set
for 300 dpi.
Note 
						

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Resolution
Displays the Resolution setting for the currently selected Image Type. And the
Resolution can be set to one of the settings provided. In this case, a new
Image Type can be saved under a new name.
Edit Image Type Button
Click the down-arrow for Image Type and select Custom (or select a
previously saved custom selection) and click the Edit Image Type button
to open the Image Type Settings dialog box. You can create and save up
to 12 custom settings of your own.
Note
The Edit Image Type button is not enabled until you select
Custom (or a custom setting previously saved) from the
Image Type drop-down list. This button is also enabled after
you select one of the pre-defined Image Types and change
the Color Mode or the Resolution setting.
Width
Displays the width of the scanning area currently selected in the Preview
Area. You can change the units to measure the scanning area.
Height
Displays the height of the scanning area currently selected in the Preview
Area. You can change the units to measure the scanning area.
Size
Displays the estimated file size of the image in the Preview Area. 
						

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Paper Size
Specifies the paper size of the image to be scanned. Note that some of
these settings are available, depending on the selected scanner.
Note
Changing the Paper Size clears the Preview area and
clears all settings you have performed with the Toolbar
and Tone sheet buttons.
• Business Card
• Statement
•B5
• Executive
• Letter
• Full Platen
•A4
Magazine
Click this check box if you want ScanGear CS-U to conduct moiré
reduction to improve the overall image quality.  Moiré are dot patterns
that interfere with processing images for professional use and are usually
caused by poor dithering resulting from scanning images from
newspapers, books, magazines, etc.
This function is the same as the Descreen function in the Advanced
mode. 
						

							36 chapter 4
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Advanced Mode Main
Window
The Main Sheet
Color Mode
The Color Mode determines how the original will be scanned:  Black and
White, Grayscale, Color, etc. Click the down-arrow and select a setting
from the drop-down list.
• Black and White  The image is scanned in black and white.
• Grayscale  The image is scanned in black and white but if the
original is in color most of the colors will be shaded. 
						

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• Color (Photos) The image is scanned in color.
• Color (Documents) Select for the best possible color quality for
documents. Scanning speed at this setting will be slower than with
the Color (Photos).
• Text Enhanced(OCR)  Converts grayscale images to black and
white using Canon ImageTrust technology. This setting produces
sharper text which will be easier for OCR software to read.
•The Text Enhanced (OCR) and Grayscale selections
require more time that the Black and White setting
in order execution digitization of the scanned
images.
•Selecting the Color Mode setting automatically
resets the Tone tab settings.
Note 
						

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Output Resolution
Click the down-arrow and select one of the pre-set Resolution settings to
set the resolution for the scanning job. The default setting is 75 dpi.
Resolution can be set within the range of 25 dpi ~ 2400 dpi (entering a
value into the entry box adjusted in increments of 1 dpi is also possible),
or values of 4800, 7200 or 9600 can be entered directly.
•The higher the resolution, the better the quality of the displayed
image but the slower the scanning speed. Make sure you select a
setting based on the capability of your output device.
•You can enter the following values directly into the entry box to
scan a very small area at high resolution. The maximum size of the
scanning area is as follows. In this case, the Scale value is set to
100%.
Resolution Scanning Area
4800 dpi 2 x 2 in.
7200 dpi 1.3 x 1.3 in.
9600 dpi 1 x 1 in. 
						

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Selection
Use the Selection options to set the exact size of the image output.
Note
To select the area to scan, use the Crop button or Auto
Crop button or enter the desired dimensions in the text
box.
• Keep Proportions button  Click this button to maintain the Width
and Height proportions. If you change Width or Height, the other
setting will be adjusted automatically to maintain the proportion of
the original image. When this button is clicked, a chain appears
between the Width and Height boxes. As you enlarge or reduce the
selection, note that the Width and Height of the selection remain in
correct proportion.
• Units  Click the down-arrow and select a unit to measure the
scanning area. Changing the Units setting does not affect the
image in the Preview Area.
• Width and Height  The width and height of the current selection,
or if there is no selection, the maximum output size, measured from
the upper left corner of the image in the Preview Area and based
on the current paper size. To change the Width and Height settings,
click the Crop button on the toolbar and select a section of the
image in the preview area, or just type the desired dimensions into
the Width and Height text boxes.
• Scale  Allows you to specify the image size after scanning 25% to
200% (preset to 100%) as a percentage of the specified scan area.
The resolution of the scanned image is kept to the specification so
that the resolution when scanning changes according to the setting
here.
•When the resolution is set to 4800, 7200 or 9600,
the Scale value is set to 100%.
•Scale setting sets the scale for the image sent to
the parent software application and has no effect
on the image displayed in the preview area.
Note 
						

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The Tone Sheet
The Tone sheet is displayed only when Color or Grayscale has been
selected for Color Mode on the Advanced Mode Main sheet and when
Canon ColorGear Color Matching is not selected for Color Setting in the
Preferences settings.
• Changing the Color Mode selection or clicking the Clear button
restores the default settings on the Tone sheet.
• Tone sheet adjustment is conducted with the Preview Area.
•Settings can be selected even when there is no image in the
Preview Area. In this case the settings take effect on the next
scanned image.
These are the Tone sheet buttons that open each tool chart and allow
you to enhance images in the Preview Area.
Samples and detailed descriptions of each sheet are provided on the
following pages.
Tone Sheet Buttons
 Auto Tone button
Found on both the toolbar and the Tone sheet, the Auto Tone button
turns the automatic tone correction feature on. Automatic tone
correction automatically adjusts the image tone to produce a better
image.