Genuine New Kyocera Fuser Units. The fuser uses heat and pressure to adhere the toner to the page. If the toner on your print outs rubs off the fuser needs to be replaced.
On most Kyocera printers an E4 error code indicates a fuser has gone bad and needs to be replaced.
Difficulty: some disassembly of the printer required, technician recommended
Free UPS Ground shipping within the 48 states. All parts sales are final, please only order what you need.