Our Compatible Laser Toner Cartridges and Supplies for use in the 1320c have a 100% Satisfaction Guarantee. These cartridges are not Dell OEM Cartridges. They are Non-OEM products that have been manufactured 100% brand new by a manufacturer that is not endorsed or associated with Dell and are guaranteed by 4inkjets.com to work with your Dell 1320c Printer. They are a low priced alternative to Dell OEM Cartridges. Our compatible alternative toners to the OEM Laser Toner Cartridges are manufactured to the highest performance and quality standards and will deliver optimal prints when used in your Dell 1320c. Since we import our products directly from the manufacturers we can pass the savings on to you.