Canon MultiPASS C560 Software Guide - Page 189
If you use threshold as your scan option, since it is by definition a high contrast image mode
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If you use halftone as your scan option, you can adjust both the contrast and brightness of the image. If you use threshold as your scan option, since it is by definition a high contrast image mode, you can only adjust the brightness of the preview image. Chapter 4 Scanning 4-39
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Chapter 4
Scanning
4-39
If you use halftone as your scan option, you can adjust both the contrast and brightness of the
image.
If you use threshold as your scan option, since it is by definition a high contrast image mode,
you can only adjust the brightness of the preview image.