Canon PIXMA MG4200 Series On-Screen Manual page 720

Important
Item types supported by Auto are photos, postcards, business cards, magazines, newspapers,
documents, and BD/DVD/CD.
To scan the following types of items, specify the item type or size. You cannot scan correctly with
Auto.
- A4 size photos
- Text documents smaller than 2L (5 inches x 7 inches) (127 mm x 178 mm), such as paperback
pages with the spine cut off
- Items printed on thin white paper
- Long narrow items such as panoramic photos
Reflective disc labels may not be scanned as expected.
Place items correctly according to the type of item to be scanned. Otherwise, items may not be
scanned correctly.
See "Placing Items (When Scanning from a
To convert text in the image into text data after scanning, specify Select Source instead of
selecting Auto.
Note
To reduce moire, set Select Source to Magazine.
Color Mode
Select how to scan the item.
Important
To select Black and White, deselect the Compress scanned images upon transfer checkbox,
then set an option other than JPEG/Exif in Data Format of Save Settings.
Paper Size
Select the size of the item to be scanned.
When you select Custom, a screen in which you can specify the item size appears. Select a Unit,
then enter the Width and Height, and then click OK.
Note
Only Auto is available when Select Source is Auto.
Click Defaults in the screen in which you can specify the item size to restore the specified
settings to the default settings.
Resolution
Select the resolution of the item to be scanned.
The higher the resolution (value), the more detail in your image.
Resolution
Note
Only Auto is available when Select Source is Auto.
Compress scanned images upon transfer
Compresses scanned images when transferring them to a computer. This is useful when your scanner
or printer and computer are connected with a slow interface such as USB1.1 or a network.
Computer)" for details on how to place items.