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Software Setup 75
Chapter 3
The availability of brightness and contrast settings are as follows according to the
mode setting on the [Basic] tab sheet.
✓ : Available for setting
— : Not available for setting, or automatically set
[Auto] Check Box
This check box is enabled when the scanning mode is [Black and White], and
selecting it adjusts brightness and contrast to match the document.
Brightness
Adjusts the brightness of images to be scanned.
☞ If images are too dark or if text on the back bleeds through, you can drag
the slider to the right to increase the setting.
☞ If images are too light, drag the slider to the left to decrease the setting.
☞ When the [Auto] check box is selected, the slider selects a brightness level
to be used for automatic adjustment.
Contrast
Adjusts the contrast of images to be scanned.
[Enable Back Side Brightness] Check Box
If the brightness of the front and back of the document pages is different, select
this to adjust only the brightness of the back side.
Scanning mode Auto Brightness Contrast Back Side
Brightness
Back Side
Contrast
Auto Color Detection
— ✓✓✓✓
Black and White
✓✓✓✓✓
Error Diffusion
— ✓✓✓✓
Advanced Text Enhancement
— ✓ ———
Advanced Text Enhancement II
— ✓✓——
High-Speed Text Enhancement
— ✓✓——
256-level Gray
— ✓✓✓✓
24-bit Color
— ✓✓✓✓