If you measure values in the indicated range on the right side contacts, the lamp is fine (240V fusers will read 3-4 times higher on the right side contacts).
Models HP LaserJet 3Si/4Si (Check our cross reference guide below for other brands)
Removal Instructions Open the top cover of the printer. Using a phillips screwdriver remove the 4 long knurled brass screws. Slide the fuser assembly to the left and pull upwards.
If you don't have a meter, continuity can also be checked across the contacts on the right hand side of the fuser by using a digital tester.
