CMYK
This scan mode is best used when you want to output
the image to a color printer. In this scan mode, a three-
channel image (i.e. RGB) is converted into a four-
channel CMYK (Cyan, Magenta, Yellow, and BlacK)
image. Only Adobe Photoshop 3.0 or later currently
supports this image type.
256 Gray Scale (8-Bit)
This scan mode is for capturing fine details and shading
in continuous-tone originals such as photographs.
Images scanned in 256 Gray Scale are rendered with
up to 256 shades of gray.
256 Fast Gray (8-Bit)
This scan mode scans faster than Gray Scale mode but
with less detail. Images scanned in this mode are
rendered with up to 256 shades of gray.
Text/Line Art (1-Bit)
Images scanned in 1-Bit Text/Line Art have absolutely
no shading, only black and white. This scan mode is
best used with text
images for OCR and graphics with only black and
white areas.
The TWAIN Driver
The TWAIN driver is the scanning module
provided with your scanner. TWAIN is an
industry standard that allows scanning directly into
any TWAIN-compliant software. It eliminates
most compatibility problems associated with software
and input devices supplied by different vendors.
The Dialog Box
You can call up the TWAIN dialog box from
within any TWAIN-compliant software such
as the application software bundled with the scanner.
To call up the TWAIN dialog box, the steps are:
1. Launch Windows.
2. Launch the TWAIN-compliant program.
20
