This is a remanufactured replacement for the Pitney Bowes 815-7 black laser toner cartridge, guaranteed to perform with Pitney Bowes laser printers. It replaces the original Pitney Bowes 8157 laser toner cartridge and delivers a standard yield of up to 10,000 pages. Remanufactured using both OEM and non-OEM parts, this cartridge offers an economical alternative to expensive OEM options while maintaining high-quality printing results. The use of remanufactured cartridges does not void your printer warranty, and we back this product with a 100% Quality Satisfaction Guarantee.