Dell 2135cn Service Manual page 748

Chapter 3 Removal and Replacement Procedures (RRPs)
Replacement 58 Separator Roller (PL10.3.99)
1) Mate the under tab of the Separator
Roller with the hole of the Tray 1.
2) Secure the left and right hooks of the
Separator Roller.
Go to the next replacement step:
Replacement 59 Tray 1 (PL10.3.1)
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Version 3 2008.06.13