Dell 2130cn Service Manual page 685

Chapter 3 Removal and Replacement Procedures (RRPs)
Replacement 40 SWITCH (PL5.1.9)
1) Engage the connecter (P/J291) of the
SWITCH.
2) Attach the SWITCH to the printer,
secure the SWITCH with the two hooks.
Go to the next replacement step:
Replacement 41 COVER SIDE R (PL1.1.6)
3 - 234