The OEM Fuser Film Sleeve RM1-8395-FM3 RM1-4554-Film is designed for use with HP printers, including models M601dn, 602n, M604n, 605dn, 606dn, P4014, 4015, 4515, and M4555. This fuser film sleeve plays a crucial role in the printer’s fusing process, helping to evenly distribute heat to fuse the toner onto the paper during the printing process.