The genuine HP RM1-1821-240CN fuser assembly unit is an integral component in your laser printer that must be changed from time to time. This original HP RM1-1821 fuser acts as a direct replacement for your old part and allows you to continue printing high quality documents. HP fusers have been manufactured to exacting standards and are used to apply the exact amount of heat and pressure required in order to bond toner to your page. This dependable HP RM1-1821 fuser unit operates between 200-240V and ensures that you get smooth operation from first print to last. Extend the life of your laser printer for many pages to come with this genuine HP RM11821 fuser assembly that is designed to work perfectly with your HP printer.