What is/are in the package? 1-Pack DR-730 Drum Unit How many pages do these print up to? Each prints up to 12,000 pages based on 5% coverage (Standard Yield) How do you install the toner cartridge? ?Remove the orange cover ?Pull out the plastic tag (where you see the orange ring) which is on the side of the cartridge, if applicable ?Insert into the printer ?Enjoy printing! What are the compatible printers? Brother HL-L2386W HL-L2385DW HL-L2376DW HL-L2375DW HL-L2370DN HL-L2351DW HL-L2350DW Printer Brother DCP-L2550DW MFC-L2715DW MFC-L2750DW HL-L2370DW HL-L2370DW XL HL-L2390DW Printer Brother HL-L2395DW MFC-L2710DW MFC-L2750DW XL HL-L2310D HL-L2357DW DCP-2510D DCP-2530DW Printer Brother DCP-2537DW DCP-2550DN MFC-L2710DN MFC-L2730DW MFC-L2710DW HL-L2375DW MFC-L2713DW MFC-L2770DW Printer GTS offers money back warranty on defective toner cartridges Please store the unused/unopened toner cartridges in a dry and cool place. Avoid sun exposure Have a question or a problem? Please do not hesitate to contact us, our Customer Services Team will usually response your email or message within 1-2 business days.