Inktoneram Compatible Toner Cartridges Replacement for Brother TN-660 TN-630 TN630 TN660 HL-L2300D HL-L2320D HL-L2340DW HL-L2360DW HL-L2380DW DCP-L2520DW DCP-L2540DW MFC-L2700DW MFC-L2720DW (BK-4PK) This package contains: 4 Inktoneram Replacement toner cartridges to replace Brother TN-660 ( TN660) Toner cartridge. (THIS IS A COMPATIBLE REPLACEMENT PRODUCT ONLY. THIS IS NON-OEM .) To replace Cartridges with part numbers : TN660 TN-660 . Page Yield : 2,600 Pages / each cartridge at 5% coverage Printer Compatibility: Brother DCP-L2520DW, DCP-L2540DW, HL-L2300D, HL-L2320D, HL-L2340DW, HL-L2360DW, HL-L2380DW, MFC-L2700DW, MFC-L2720DW, MFC-L2740DW Warranty: Our Compatible Inktoneram Replacement toner cartridges to replace Brother TN660 cartridges are manufactured under strict ISO-9001 standards. They are excellent economical alternatives to the high-cost OEM Brother TN660 cartridges. These cost-effective toner cartridges will provide high quality prints that meet OEM standards and are guaranteed against defect. Our compatible Replacement toner cartridges to replace Brother TN660 cartridges come with a 90 day 100% money back guarantee. 4Black Inktoneram Replacement Toner Cartridgesfor TN660 High yield replacement toner cartridges for Brother TN660 High page yield: 2,600 pages at 5% Page Coverage Manufactured under strictest quality standards in ISO-9001 with professional quality control &amp; inspection Produce crisp and clear prints suitable for everyday printing Simple to install and will not require assistance from a technician Brother DCP-L2520DW Laser Printer BrotherDCP-L2540DWLaser Printer BrotherHL-L2300DLaser Printer BrotherHL-L2305WLaser Printer BrotherHL-L2320DLaser Printer BrotherHL-L2340DWLaser Printer BrotherHL-L2360DWLaser Printer BrotherHL-L2380DWLaser Printer BrotherMFC-L2700DWLaser Printer BrotherMFC-L2720DWLaser Printer BrotherMFC-L2740DWLaser Printer Make sure that the machine is<span class="a-text-bold">turned on</span>. Open the front cover. Remove the toner cartridge and drum unit assembly from the machine. Push down the lock lever and take the toner cartridge out of the drum unit. Unpack the new toner cartridge and pull off the protective cover. Put the new toner cartridge firmly into the drum unit until you hear it lock into place. If you put the cartridge in correctly, the lock lever on the drum unit will lift automatically. Clean the corona wire inside the drum unit by gently sliding the green tab from left to right and right to left several times. Install the toner cartridge and drum unit assembly back into the machine. Close the front cover. Keep the toner cartridge flat. Never upright Shakethe toner for5-10 times horizontally before installing to evenly distribute the toner powder inside Keep in the shade. Keep out of direct sun Store in a cool dry place Please install and use immediately after unseal Please handle with care High Performance Stable Professionally tested &amp; Perfectly compatible Maximum number of prints Sufficient toner powder, superior page yield Easy replacement