10
Setting area
Scan Mode
The scan mode determines the amount of color information collected from your original. Choose this option based
on what the original is - color or black & white- and what you want to use the scan for: color display, black & white
printing, OCR, etc. Your choice also influences the file size: true-color being the largest, grayscale the next and black
& white the smallest. When you change this option, look at the projected file size in the message bar: true-color
images are three times larger than grayscale and twenty-four times larger than black & white!
True-color
This scan mode collects the maximum amount of color
information from the original, up to around 16.7
million colors! Choose this option for a color original
that you want to display, print or edit in color.
Grayscale
Use this mode for black & white photos or scanning
color material to print on a black & white printer.
Line-art
Use this mode to scan text or line drawings - a picture
containing no colors or shades of gray, but black lines
only.
Resolution
Resolution determines the amount of detail collected from an original. The higher the resolution, the more detail.
Select a value based on what you want to use the scan for. In general, we recommend you keep the resolutionaslow
aspossiblebecause the higher the resolution, the slower your scan and the larger the resulting file size. A lower
resolution (100-200dpi) can capture more color and detailed information than mostprinters and displays can
show. When you adjust the resolution, keep an eye on the projected file size in the message bar. Try the following:
100dpi
For images to display on screen at about the same size
as the original in a presentation or on your web page.
Also use this for larger images that you will reduce in
size to include in a report or presentation and print out
on a normal color or black & white printer (with a print
resolution of 300~360dpi).
200dpi
For small images to display at a larger size on screen, or
for any size to print out at original size on a color or
black & white printer (up to 720dpi print resolution).
Also use 200dpi (with black & white scan mode) to OCR
clear text (over 10pt); for small text, use 300dpi.
Brightness