MICR Toner produced by TROY provides a high level of quality to meet or exceed the highest printing standards. MICR toner cartridges are precision-matched to meet the print characteristics of each printer model. Produced by TROY with the tightest tolerances, these MICR toner cartridges consistently meet or exceed the yield of OEM cartridges, providing customers with a low operating cost. TROY MICR Toner Secure 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.