Dell 3115cn Color Laser Printer User Manual page 260

Adjust Fuser
NOTICE: The print quality changes depending on the setting values you select for this item.
Purpose:
To specify the temperature settings value for the fuser unit.
Values:
Plain -2 - +2
0
Plain Thick -2 - +2
0
Transparency -2 - +2
0
Covers -2 - +2
0
Covers Thick -2 - +2
0
Label -2 - +2
0
Coated -2 - +2
0