High-Quality TROY MICR Toner Secure™ Cartridge for use with the TROY MICR 8000/524/624 and HP LaserJet 8000/5Si Printers only. Cartridge yields approx. 18,000 pages with 5% coverage. (HP Part # HEW C3909A - non-MICR).

TROYs patented anti-fraud technology forces a bright red stain to appear if chemical alteration of a document is attempted. Any solvent that will remove toner immediately releases the security agent when it comes into contact with the toner.