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 4/4+/5, Apple Pro 600/630,16/600 (Check our cross reference guide for other brands)Removal Instructions Open the back door of the printer. Using a philips screwdriver, remove the 2 hex-headed screws holding the fuser in place. Gently pull back, watching the plastic arm on the top right to make sure it doesn't get hung up and break. If you don't have a meter, continuity can also be checked across the contacts on the right side contacts by using a digital tester. | |  | | Some Special Deals HP LaserJet 4/5 Toner Cartridge (92298A) New OEM Click here to see a list of possibly compatible printers for this toner cartridgeClick here for more info
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