This is not an OEM original brand. These are Premium Remanufactured Re-Used Cartridges. The replacement MICR toner cartridge is designed for use with Hewlett-Packard LaserJet 8100 and 8150. Toner delivers maximum print performance, reliability and dramatic savings. Manufactured with new after-market components, cartridge offers an ultra-fine particle toner and a sealing process that ensures a leakproof cartridge. Cartridge yields approximately 20,000 pages. Elite Image is ISO certified.