Brother ADS-2400N User Manual page 143

Scan Using Your Computer
2 Resolution
Select a scanning resolution from the Resolution drop-down list. Higher resolutions need more
memory and transfer time, but produce finer scanned images.
3 Scan Type
Select one of the following:
 Auto
Automatically detects whether the document uses colour and generates a scanned image of it. For
documents that mix colour and black and white pages, colour pages will be scanned in Colour mode,
while black and white pages will be scanned in Black & White mode.
 Black & White
Use for text or line art images.
Grey (Error Diffusion)

Use for photographic images or graphics. (Error Diffusion is a method for creating simulated grey
images without using true grey dots. Black dots are put in a specific pattern to give a grey
appearance.)
 True Grey
Use for photographic images or graphics. This mode is more exact because it uses up to 256 shades
of grey.
 24bit Colour
Uses up to 16.8 million colours to scan the image. Although using 24bit Colour creates an image
with the most accurate colour reproduction, it requires the most memory and has the longest transfer
time.
NOTE
The Contrast setting is available only when setting Scan Type to Grey (Error Diffusion), True Grey or
24bit Colour or Auto.
Resolution
100 x 100 dpi
150 x 150 dpi
200 x 200 dpi
300 x 300 dpi
400 x 400 dpi
600 x 600 dpi
1,200 x 1,200 dpi
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