This is a new MICR Toner Cartridge for Xerox Phaser 4400 printers. It is custom built to replace Xerox 113R628 cartridges. The MTI © 113R628 MICR Cartridge allows you to print professional checks from your home or office. MTI © MICR Cartridges deliver high-quality MICR output and excellent toner yield, at an exceptionally low cost per page. Every cartridge is factory-tested and ISO approved, and guaranteed to perform with Samsung Printers. We offer an exclusive 30-day customer satisfaction guarantee and 1-year warranty. Our dedicated customer care staff is available 9 a.m. to 7 p.m, Monday through Saturday, to answer any questions and provide technical support.