Ricoh SP 1200SF User Manual page 35

Resolution
You can choose a scanning resolution from the Resolution drop-down list. 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 colours.
Resolution
100 × 100 dpi
150 × 150 dpi
200 × 200 dpi
300 × 300 dpi
400 × 400 dpi
600 × 600 dpi
1200 × 1200 dpi
2400 × 2400 dpi
4800 × 4800 dpi
9600 × 9600 dpi
19200 × 19200 dpi
Scan Type
Black & White
Use for text or line art.
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 appearance of grey.)
True Grey
Use for photographic images or graphics. This mode is more exact because it uses up to 256 shades of
grey.
256 Colour
Uses up to 256 colours to scan the image.
24 bit Colour
Uses up to 16.8 million colours to scan the image.
Although using 24 bit Colour creates an image with the most accurate colour, the image file will be about
three times larger than a file created with 256 Colour. It requires the most memory and has the longest
transfer time.
Black & White/
Grey (Error Diffusion)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
256 colour
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Scanning
True Grey/24 bit colour
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
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