Compatible HP models: LaserJet: 4200, 4200 dtn, 4200 dtns, 4200 dtnsl, 4200 n, 4200 tn. . Compatible Troy Systems models: 4200 Micr Secure, 4200 Micr Secure Ex, 4200v Micr. . MICR Print Solutions are toner cartridges specifically created for banks to print checks. MICR, which stands for magnetic ink character recognition, is a technology that utilizes a special toner powder that provides added security to checks. Checks printed without MICR toner can be rejected by the bank when cashed, potentially resulting in a returned check fee. MICR Print Solutions product line offers high quality MICR toner cartridges for a variety of printers. Save money while not compromising on quality and security with MICR Print Solutions. Available for top brands such as HP, Lexmark, IBM, and Xerox printers Cost-saving alternative to TROY and Source Technologies MICR toner cartridges Meet US and Canadian banking standards Backed by a 100% Performance Guarantee Comparable to the HP Q1338A cartridge. Yields up to 12,000 pages. Comparable to the original equipment manufacturer (OEM) in quality, page yield and reliability. 100% satisfaction guaranteed by the manufacturer. Remanufactured - made from quality recovered cartridges, helping you save resources, reduce waste and potentially save money. Recycling solution - designed to encourage recycling, helping you divert materials from landfill.