Dell 2350D User Manual page 43

From this You can:
menu:
Assign
Tray <x> 0–199
Assign
Manual
Paper
Assign
Man Env
Display the factory default setting assigned to each tray, drawer, or
View
feeder.
Factory
Def
Return all tray, drawer, and feeder assignments to the factory default
Restore
settings.
Defaults
*Factory
default
setting