Ricoh GS106 Copy Reference Manual page 55

Reference
See p.iii "What You Can Do with This Machine <Color Functions/Color
Adjustments>".
Adjusting the sharpness/softness
Adjusts the outline of an image.
A
Adjust by pressing [Soft] or [Sharp].
B
Press the {OK} key.
Adjusting the Contrast
Adjusts the shades of an image.
A
Adjust by pressing [Low] or [High].
B
Press the {OK} key.
Color Functions
2
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