Dell 5100cn Color Laser Printer User Manual page 207

3. Close the outer front cover.
Removing the Used Separator Roller
NOTE: Remove any print jobs from the tray before pulling the tray out of the printer.
1. Pull the tray out of the printer until it stops. Hold the tray with both hands, lift the front slightly, and remove it
from the printer.
2. Press both tabs inward and hold while gently lifting the separator roller cover to the open position.