This is a compatible replacement cartridge for the HP CF281A MICR (81A) black laser toner cartridge. Designed specifically for printing professional checks, this toner features a special iron that allows checks to be detected and processed by banking systems. It delivers an exceptional yield of up to 10,500 pages, making it a cost-effective alternative to expensive OEM cartridges. The use of this compatible toner does not void your printer's warranty and is backed by our 100% Satisfaction Guarantee.