Avision FB2100_Green (BF-0505) - Manual (Page 25)

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Threshold
Used to convert a grayscale image to a
bi-tonal image. The value ranges from 0 to
255. A low threshold value produces a lighter
image, and can be used to subdue
backgrounds and subtle, unneeded
information. A high threshold value produces
a darker image, and can be used to help pick
up faint images.
Adjust the threshold setting by dragging
the Threshold sliding bar to the left or
right to achieve the desired threshold
setting.
200 dpi,
Threshold:80,
Brightness: 0
200 dpi,
Threshold:170,
Brightness: 0