Canon PIXMA MG4200 Series On-Screen Manual page 759

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S308
Resolution
The data in the image you have scanned is a collection of dots carrying information about brightness and
color. The density of these dots is called "resolution", and resolution will determine the amount of detail
your image contains. The unit of resolution is dots per inch (dpi). Dpi is the number of dots per inch (2.5
cm).
The higher the resolution (value), the more detail in your image; the lower the resolution (value), the less
detail.
How to Set the Resolution
You can set the resolution in the following screens.
IJ Scan Utility
Resolution on the
ScanGear (Scanner Driver)
Output Resolution in Output Settings on the Advanced Mode tab
Appropriate Resolution Settings
Set the resolution according to the use of the scanned image.
Item Type
Color photo
Black and white photo
Text document (document
or magazine)
> Useful Information on Scanning
(Scanning from a computer) tab of the Settings dialog
Use
Copying
(Printing)
Creating a postcard
Saving to a computer
Using on a website or
attaching to e-mail
Saving to a computer
Using on a website or
attaching to e-mail
Copying
Attaching to e-mail
Scanning text using OCR
> Resolution
Color Mode
Color 300 dpi
Color 300 dpi
Color 300 dpi
Color 150 dpi
Grayscale 300 dpi
Grayscale 150 dpi
Color, Grayscale, or 300 dpi
Black and White
Color, Grayscale, or 150 dpi
Black and White
Color or Grayscale 300 dpi
Appropriate
Resolution