This toner cartridge yields approximately 2,500 pages when printing at 5% coverage on A4/Letter sized paper. When the "Toner" LED starts to blink, the toner cartridge is almost empty. You should order a new toner at this time to be ready for when the toner cartridge is out of toner.

Brother drum unit is compatible with the following products:
Brother DCP-7010
Brother DCP-7025
Brother HL-2030
Brother HL-2040
Brother HL-2070
Brother HL-2500
Brother MFC-7225N
Brother MFC-7420
Brother MFC-7820N