This is a genuine PcI Brand Premium compatibles Inc. product for use in Sharp Printers and is warranted to be free from defects in materials and workmanship for One Year. Use of our PcI branded consumables will not void the manufacturer warranty of your printer copier fax or other hardware item. Premium compatibles Inc. is a USA recycler of used and unwanted PcI and OEM Brand toner cartridges. To take advantage of our free service have a minimum of 6 cartridges ready for recycling email us and ask for your prepaid UPS call tag. Stated product yields are based on the industry standard 5% page coverage. Your yield may vary based on usage.