It would depend on the LaserJet model you have. Most of the HP LaserJet models have a combination drum/toner cartridge and you would be replacing the drum when you replace the toner. The ones that have a separate drum from toner, you have to attach the drum to each toner cartridge, and will it fill up with used toner, the printer will indicate that the drum needs to replaced instead of the toner.
Answered by: HP Live Expert James
Date published: 2023-10-11