Canon 3749B002 On-Screen Manual page 646

Use the scanner driver
Select this checkbox to display the ScanGear (scanner driver) screen and make advanced scan
settings.
Color Mode, Document Size, Resolution and other settings in the Film dialog box will be disabled.
Specify these settings in the ScanGear (scanner driver) screen.
Specify...
Click to open the Scan Settings dialog box in which you can make advanced scan settings.
Scan Settings Dialog Box
Save Settings
Automatically save the image to your computer after scanning it
Select this to save the images to your computer as specified after scanning them.
The File name, Save as type and Save in settings will be displayed.
Important
If you select this function, you will not be able to set passwords for PDF files.
File name
Enter the file name of the image to be saved (up to 64 characters). When saving multiple files, 4
digits are appended to each file name.
Save as type
Select a file type to save the scanned images.
Select JPEG/Exif, TIFF or BMP.
Note
If you select JPEG/Exif, the Save the JPEG/Exif file in AdobeRGB checkbox will be selectable.
Set...
When Save as type is JPEG/Exif
You can specify a compression type for JPEG files. Select High(Low Compression), Standard or
Low(High Compression).
Important
This setting is not available when the Compress scanned images when transferring checkbox
is selected on the General tab of the Preferences dialog box.
Save in
Displays the folder in which to save the scanned images. To change the folder, click Browse... to
specify another one.
The following folders are specified by default.
Windows Vista: MP Navigator EX folder in Pictures folder
Windows XP: MP Navigator EX folder in My Pictures folder
Windows 2000: MP Navigator EX folder in My Pictures folder
Save to a Subfolder with Current Date
Select this checkbox to create a subfolder in the folder specified in Save in with the current date and
save scanned files in it. A subfolder with a name such as "2009_01_01" (Year_Month_Date) will be
created.
If this checkbox is not selected, files are saved directly in the folder specified in Save in.
Save the JPEG/Exif file in AdobeRGB
Select this checkbox to save the images in colors that correspond to Adobe RGB.
Important
This function is available only when Save as type is JPEG/Exif.
This function is not available if the Adobe RGB profile is not installed.