Dell 5330dn Workgroup Mono Laser Printer - Manual (Page 4)

Operator Panel Button Functions
1 rear door 5 parallel port
2 duplex unit 6 USB port
3 power receptacle 7 power switch
4 network port
Button: Discription:
Dual Color LED Shows the Printer status.
4-way Scroll, increasing or decreasing values.
Confirms screen selection.
Goes back to the upper menu level.