Settings in the Scanner window

Resolution

You can change the scanning resolution from the Resolution pop-up menu. Higher resolutions take more memory and transfer time, but produce a finer scanned image. The following table shows the resolutions you can choose and the available colors.
Resolution
Black & White/
Gray (Error Diffusion)
8 bit color
True Gray/24 bit color
100 × 100 dpi
Yes
Yes
Yes
150 × 150 dpi
Yes
Yes
Yes
200 × 200 dpi
Yes
Yes
Yes
300 × 300 dpi
Yes
Yes
Yes
400 × 400 dpi
Yes
Yes
Yes
600 × 600 dpi
Yes
Yes
Yes
1200 × 1200 dpi
Yes
No
Yes
2400 × 2400 dpi
Yes
No
Yes
4800 × 4800 dpi
Yes
No
Yes
9600 × 9600 dpi
Yes
No
Yes
19200 × 19200 dpi
Yes
No
Yes

Scan Type

• 
Black & White
Use for text or line art images.
• 
Gray (Error Diffusion)
Use for photographic images or graphics. (Error Diffusion is a method for creating simulated gray images without using true gray dots. Black dots are put in a specific pattern to give the gray appearance.)
• 
True Gray
Use for photographic images or graphics. This mode is more exact because it uses up to 256 shades of gray.
• 
8 Bit Color
Uses up to 256 colors to scan the image.
• 
24 Bit Color
Uses up to 16.8 million colors to scan the image.
Although using 24 Bit Color creates an image with the most accurate color reproduction, the image file size will be about three times larger than a file created using the 8 Bit Color option. It requires the most memory and has the longest transfer time.
Screen

Document size

Choose one of the following document sizes:
• 
A4
• 
JIS B5
• 
Letter
• 
Legal
• 
A5
• 
Executive
• 
Business Card
To scan business cards, choose the Business Card size (90 × 60 mm), and then put the business card face down at the center of the scanner glass.
• 
Photo
• 
Index Card
• 
Photo L
• 
Photo 2L
• 
Postcard 1
• 
Postcard 2
• 
Custom (User adjustable from 0.35 × 0.35 in. to 8.5 × 14 in. or 8.9 × 8.9 mm to 215 × 355 mm.)
After you choose a custom size, you can adjust the scanning area. Click and hold the mouse button as you drag the mouse to crop the image.
Width: Enter the width of the custom size.
Height: Enter the height of the custom size.

Adjusting the Image

• 
Brightness
Adjust the setting (-50 to 50) to get the best image. The default value is 0, representing an average, and is usually suitable for most images.
You can set the Brightness level by dragging the slide bar to the right or left to lighten or darken the image. You can also enter a value in the box to set the level.
Screen
If the scanned image is too light, set a lower Brightness level and scan the document again.
If the image is too dark, set a higher Brightness level and scan the document again.
Note Note
 
The Brightness setting is only available if you have set Scan Type to Black & White, Gray or True Gray.
• 
Contrast
You can increase or decrease the contrast level by moving the slide bar to the left or right. An increase emphasizes dark and light areas of the image, while a decrease reveals more detail in gray areas. You can also enter a value in the box to set the Contrast.
Note Note
 
The Contrast setting is only available if you have set Scan Type to Gray or True Gray.
When scanning photographs or other images for use in a word processor or other graphics application, try different settings for the Resolution, Color Type, Brightness and Contrast to see which setting best suits your needs.