This offer includes a new compatible black toner cartridge for Kyocera Mita TK592K. The cartridge is designed for use with Kyocera Mita Ecosys M6026cidn, 6526cdn, 6526cidn, P6026cdn, FS-C2026MFP, 2126MFP, 2126MFP+, and 2526MFP printers. The use of this replacement cartridge does not void your printer's warranty. It provides reliable and professional printing. If you are not 100% satisfied with your purchase, you can return your order within 30 days for a full refund or free replacement.