Our Compatible Laser Toner Cartridges have a one year 100% quality satisfaction guarantee. All the Dell compatible cartridges are manufactured 100% brand new by a manufacturer that is not endorsed or associated with Dell and are guaranteed by Amamax to work with your Dell printer. The compatible Dell toner cartridges are manufactured in ISO 9001/14001 & STMC Certified facilities and are guaranteed to meet or exceed OEM specifications.