TROY 8100/8150 MICR Toner Secure Cartridge 02-81023-001 yield 25,000 Part Number: 02-81023-001 Coordinating Non-MICR HP Part Number: HP-C4182X Cartridge yields approx. 25,000 pages with 5% coverage TROY Security Toner was created as a way to help prevent fraudulent alteration of documents The patented security agent forces a bright red stain to permeate through the document if chemical alteration is attempted For HP LaserJet 8100 Series MICR Toner Cartridge 22,000 Page Yield Black Cartridge