Dell 3115cn Color Laser Printer User Manual page 588

Coated Thick/Coated 3/Coated Paper 3
C3B
Coated Thick Back/Coated 3/Coated Paper 3- Side 2
E
Envelope
If this option is not specified, multipurpose feeder Paper Type of the multifunction printer can be used.
-Mfo=mode
Specifies orientation for multipurpose feeder.
Available orientations for multipurpose feeder are as follows:
le
Landscape
ler
Landscape (Rotated)
se
Portrait
ser
Portrait (Rotated)
-Pon
Specifies alternate tray.
Available alternate trays are follows:
0
Use system settings
1
Display message
2
Feed from multipurpose feeder
3
Use nearest size (Adjust to fit)
4