D.2.3.1 resolution, D.2.3.2 brightness, D.2.3.3 threshold – FUJITSU M3093DG User Manual
Page 195: D.2.3.4 downloaded dither pattern and brightness, D $ 12, D $ 13

D.2.3.2
Brightness
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M3096G: The brightness is specifiable in eight steps.
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M3096GX: The brightness is specifiable in 255 steps.
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Note:
It is recommended to specify the values below to allow specification in eight
steps for both the M3096G and M3096GX scanners.
01 (Brighter), 20, 40, 60, 80 (Medium), A0, C0, E0 (Darker)
D.2.3.3
Threshold
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M3096G:
The value of threshold is specifiable in 64 steps. If the specified
value cannot be divided by 4, the fractional part (remainder) is
ignored.
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M3096GX: The value of brightness is specifiable in 255 steps.
-
Note:
It is recommended to specify the values below to allow specification in 64 steps
for both the M3096G and M3096GX scanners.
01 (Brighter), 04, 08, ... 80 (Medium), ....., FC (Darker)
D.2.3.4
Downloaded dither pattern and Brightness
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M3096G:
To use the downloaded dither pattern in the M3096G scanner,
specify ™0∫ as Brightness.
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M3096GX: If the downloaded dither pattern is used in the M3096GX scanner,
the value of Brightness is specifiable in 255 steps.
D $ 13