User's Manual

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2)
Not available for setting if either one of the following two conditions are met.
[Detection mode] in the [Auto Image Type Detection Settings] dialog box is set to [Color or Gray]
[Mode in case of binary] in the [Settings for in case of binary] tab is set to [Error Diffusion]
3)
Not available for setting if [Detection mode] is set to [Color or Gray] in the [Auto Image Type Detection Settings] dialog box.
Some of the setting items are disabled as follows depending on the setting for [Color Mode] in the settings screen of the scanner driver.
Simple Mode
: Available for setting
Advanced Mode
: Available for setting
Setting value
Check the image of the
first page
Detect automatically
Black and White
Error Diffusion
Advanced Text Enhancement II
256-level Gray
24-bit Color
Setting value
Enable Back Side
Brightness
Enable Back Side
Contrast
Check the image of the
first page
Detect automatically 
Black and White 
Error Diffusion 
Advanced Text Enhancement II
256-level Gray 
24-bit Color 