Dell 5310n - Workgroup Laser Printer B/W Service Manual page 256

Remove the fuser lamp.
5.
Warning:
Use the following table to identify and install the correct lamp.
Service Manual
4-34
The lamp is under spring tension, and care must be used when removing the lamp from the
fuser. Grip the lamp by the ceramic end piece, and remove it from the fuser assembly. Be
careful not to touch the glass, as skin oils and acids can reduce the life of the lamp.
Description
Fuser Lamp 115 V
Fuser Lamp 220 V
P/N
40X0122
40X0123