Kyocera ECOSYS MA2600cwx Operation Manual page 515

System Menu > Adjustment/Maintenance
[Contrast]
Make the overall contrast higher or lower.
Item
[Copy]
[Send/Box]
Increases or decreases the overall contrast of copies.
Value: -3 (Lower), -2, -1, 0 (normal), +1, +2, +3 (Higher)
Increases or decreases the overall contrast when documents are sent or
saved in a document box.
Value: -3 (Lower), -2, -1, 0 (normal), +1, +2, +3 (Higher)
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Description