AgfaPhoto AS 1300 User Manual page 27

Mode – tells the scanner the type of document you are scanning. There are three
settings to choose from:
•
Color – scans the document in 24-bit, RGB color. This mode takes the
longest time and uses the most memory but results in the highest quality
images.
•
Grayscale – scans images in black and white and can simulate 256
different shades of gray using dithering. This mode is best used when
color isn't necessary for the scanned image since color images take so
much time to scan and process, or when no color printer is available.
Using this mode, even to scan color images, will result in high-quality black,
white, and gray output (the color will automatically be converted to gray).
•
Text – is preferable when scanning text documents. It results in clear black
and white documents suitable for printing and faxing.
Resolution – is measures in dots per inch (dpi). The higher the resolution, the
more detailed the image, and the more memory and drive space the image will
use.
Brightness – This is amount of light that is concentrated onto a document while it
is being scanned. Raising the brightness increases the amount of white in an
image, making it appear more washed out. Lowering the brightness may help you
read light or faint text.
Contrast – adjusts the tonal range of an image by lowering mid-tone values and
increasing values for high and low tones. The higher the contrast, the sharper the
image will be. The lower the contrast, the blurrier an image will be.
Gamma – Use the slider to adjust the image gamma for the scanned image.
Gamma values are primarily a measure for the color brightness. The larger the
gamma value, the brighter the color becomes. Changing the image's gamma
value allows you to change the brightness of the colors IN THE IMAGE ITSELF.
Printer
This pull-down menu contains all the printers the have been installed in Windows.
Simply click on the down-arrow at the right of the box and choose the printer you
wish to use. (Only if you select the Copy from the Purpose drop-down menu, will
the option be enabled.)
If the printer you wish to use does not appear in the pull-down list pf printers, then
it is not installed in Windows. To install a printer, click on the Windows START
button; choose Settings and then Printers. In the window that opens, double-click
on the Add New Printer icon and follow the instructions carefully.
Scaling and Position
The slider bar is used to reduce or enlarge the scanned image on the printed page.
The reduce/enlarge value is displayed in a box to the right of the slider bar and denotes
the percentage which the image will be resized. Thus, a value of 200 (%) will cause the
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