Ricoh AP305 Operating Instructions Manual page 23

Brightness
This setting controls the overall brightness of the image. Moving the slider to the
plus (+) side increases brightness, while moving it to the minus (-) side decreases
brightness.
Contrast
This setting controls the range between the darkest and lightest shade of an im-
age. Moving the slider to the plus (+) side decreases the range and makes con-
trast stronger, while moving it to the minus (-) side expands the range.
Saturation
This setting controls the purity of a color. Moving the slider to the plus (+) side
increases saturation and makes colors more vivid, while moving it to the minus
(-) side decreases saturation.
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