Brother MFC 9840CDW User Manual download pdf (Page 172)

Scanning

165

Settings in the Scanner window 9

Resolution 9

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.

Scan Type 9

 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 the grey appearance.)

 True Grey

Use for photographic images or graphics. This mode is more exact because it uses up to 256 shades of

grey .

 8 Bit Colour

Uses up to 256 colors to scan the image.

 24 Bit Colour

Uses up to 16.8 million colors to scan the image.

Although using 24 Bit Colour 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 Colour option. It requires the most

memory and has the longest transfer time.

Resolution Black & White/

Grey (Error Diffusion)

8 bit colour True Grey/24 bit colour

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

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Brother MFC 9840CDW User Manual Page 172