GREENBOX Compatible Toner Cartridge Replacement for Brother TN850 TN-850 TN-820 TN820 for Brother DCP-L5500DN DCP-L5600DN MFC-L5700DW HL-L5000D MFC-L5800DW MFC-L5850DW HL-L5100DN Printer (2 Black)

ISO9001 and ISO14001 Certificate Approved, all cartridges go through strict quality inspections before shipment, which are non-polluting and guarantees the premium quality with crisp text and graphics. Attentive service:Multi-protection packaging to prevent damage caused by bumps during transportation,efficient after-sales service to ensure that all your problems can be solved satisfactorily. The page yield is an estimation based on the industry standard of 5% coverage only. If you print more than 5% per page, then the page yield is significantly less. GREENBOX continues to provide you with high print volume, make your printing life easy