E-Z Ink (TM) Compatible Toner Cartridge Replacement For Samsung 504 504S CLT-K504S Compatible With SL-C1810W SL-C1860FW CLP-415NW CLX-4195FW Printer (4 Pack) CLT-504S CLT-M504S CLT-C504S CLT-Y504S E-Z Ink compatible toner cartridges replacement for Brother TN880 are manufactured in an ISO 9001 & ISO14001 certified facility. All toner cartridges are engineered to produce superb results. Package Contents: 1 x User Guide, 1 x TN880 Black (Total 1 Pack) Page Yield: Black is 12,000 pages per cartridge at 5% coverage ($0.0021 / page ONLY, Save up to 70% compared to OEM toner cartridge) Compatible Printers:Brother MFC-L6700DW MFC-L6800DW HLL6200DW HLL6200DWT HLL6250DW HLL6300DW HLL6400DW HLL6400DWT MFCL6750DW MFCL6900DW Printer Warranty & Support: E-Z Ink toner cartridge comes with 2-Year 100% Quality Guarantee / Shelf life: 24 months. Please contact Manufacturer E-Z Ink directly for any questions  Technical support, customer support is always online for you.