This is a compatible replacement for the HP CF226X MICR (26X) black laser toner cartridge. Designed specifically for printing professional checks, this toner contains a special iron that allows checks to be detected and processed through a bank's scanning system. With a high yield of up to 9,000 pages, this cartridge provides exceptional value and reliability for your printing needs. The use of compatible toner cartridges does not void your printer's warranty. Backed by our 100% Satisfaction Guarantee.