This is a compatible replacement cartridge for the HP CF287A MICR (87A) black laser toner cartridge. MICR toners are specifically designed for printing professional checks, utilizing a special iron in the toner for detection by bank scanning systems. This cartridge delivers a yield of up to 9,000 pages, making it an economical alternative to expensive OEM options. The use of this compatible toner does not void your printer's warranty and is backed by our 100% Satisfaction Guarantee.