8-10
Chapter 8 ISIS/TWAIN Driver Settings
■ Mode-Dependent Function Limitations
The following tab sheet functions are partially disabled
according to the selected mode. For details on the
[Brightness] tab sheet settings, see “[Brightness] Tab
Sheet” on p. 8-12.
✔
: available for setting,
–
: not available for setting, or auto
■ [Auto Image Type Detection Settings] Dialog
Box
This dialog box appears when you select [Auto Color
Detection], and enables you to make settings for detecting
whether scanned images are in color or black-and-white,
and select the mode to use when an image is detected as
black-and-white.
Color Saturation/Proportion of Color
These settings are for judging whether a document is in
color.
Depth of color in documents is detected by [Color
Saturation], and [Proportion of Color] is used to judge a
color document.
IMPORTANT
• Changing these settings is not normally necessary. Change
them only if you want a document of light colors to be judged
to be a black-and-white document.
• Select [24-bit Color] if color documents are judged to be black-
and-white documents with the default settings.
[Mode in case of binary]
Select the scanning mode when a page is judged to be
black-and-white.
Brightness and Contrast
Adjust the brightness and contrast when [Advanced Text
Enhancement] or [Advanced Text Enhancement II] is
selected for [Mode in case of binary]. For other modes, the
brightness and contrast are set on the [Brightness] tab
sheet.
Settings Tab Sheet
Basic Image processing Others
Deskew
Moire Reduction
Edge emphasis
Erase Dot
Border Removal
Prevent Bleed Through /
Remove Background
Color drop-out
JPEG Transfer
Batch Separation
(ISIS driver)
Prescan
Scanning Modes
Black and White ✔✔✔✔✔ ✔ ✔– ✔✔
Error Diffusion ✔✔✔– ✔✔✔– ✔✔
Advanced Text
Enhancement
✔✔✔✔✔ – ✔ – ✔✔
Advanced Text
Enhancement II
✔✔– ✔✔ – ✔ – ✔✔
256-level Gray ✔✔✔– ✔✔✔✔✔✔
24-bit Color ✔✔✔– ✔✔– ✔✔✔
Auto Color
Detection
✔✔✔✔✔ ––✔ ––
