Dell 5310n - Workgroup Laser Printer B/W Service Manual page 278

Pull the LVPS assembly far enough out from the right side of the printer to disconnect the fuser to LVPS
6.
AC lamp cable (D).
Warning:
Remove the low voltage power supply.
7.
Service Manual
4-56
The LVPS assembly may be difficult to remove from the printer. Do not use excessive force in
the removal.