Clever Supplies brand products are made with high quality components. Why pay more for cheaper product with a high defective rate? You will end up having to send it back to the manufacturer. Your time is valuable. Get a quality product that you KNOW will work. Purchase the Clever Supplies Compatible for HP 09XX High Yield Black and experience the difference! All Clever Supplies brand products are backed by '100% Quality Satisfaction' 1 year warranty against defects in materials and workmanship for all toner products. Free tech support for any problems for all Clever Supplies brand products.The use of Clever Supplies brand replacement laser toner cartridges and supplies does not void printer warranty. Premium Quality Replacement Toner Cartridge is made by ISO9001 Certified Factory to Meet or Exceed OEM Standards. These units are manufactured 100% brand new with all new parts including OPC drums, wiper blades, a smart chip and other internal parts, they are an economical alternative to expensive OEM C3909XX laser toner cartridges. The compatible toner cartridge will produce the same amount of page yield as an OEM cartridge would. This is a Compatible for HP 09XX Toner Cartridges High Yield Black guaranteed to perform with HP Laser Printers. It replaces the original HP 09XX Toner Cartridges High Yield Black. The compatible replacement for C3909XX. The use of compatible replacement Cartridges and supplies does not void Printer Warranty. Our Compatible for C3909XX Cartridge is a replacement for OEM HP. We offer a 100% Quality Satisfaction Guarantee on our Compatible for C3909XX Laser Toner Cartridges and supplies. For use in the following printers: 5SI, 5SI MX, 5SI NX, 8000, 8000N, 8000DN, 8000MFP