Office Depot remanufactured MICR cartridges offer businesses exceptional quality and value while helping the environment. MICR toner cartridges are required for check printing due to the added security the special toner provides. These remanufactured MICR cartridges significantly reduce landfill waste as well as carbon emissions due to cartridge reuse. Office Depot MICR toner cartridges also provide unsurpassed quality and ease of use.