Ricoh IS450DE Operator's Manual page 60

SCANNER FEATURES
Function Scanning a selected area of an image using the settings you
specify.
Usage Enter the settings you want to use, for example, the scan area,
scanning composition, resolution, and so forth. Use Scan to scan
the image using these parameters.
Determine the value of the settings based on the original and the
output device (screen, printer, and so forth). When you scan an
image at high resolution, you still cannot output it at high resolution
when you are using a low resolution output device. Scanning an
image at high resolution requires a greater amount of memory
space and processing time.
A-2