Dell 3115cn Color Laser Printer - Manual (Page 604)

-Pr=mode
Specifies print mode.
Available print modes are as follows:
hs
High speed
hq
High quality
-Cc=mode
Specifies image types.
Available image types are as follows:
0
Off
1
Photo
2
sRGB
3
Standard/ Normal
4
Presentation
This option is available only for color printing and when entry data is RGB data.
-Gc=mode
Specifies RGB gamma correction.
Available RGB gamma corrections are as follows:
1.0
1.0
1.4
1.4
1.8
1.8