These printers use the DR300 cartridge:
Brother HL 820
Brother HL 1020
Brother HL 1040
Brother HL 1040 DX
Brother HL 1040 LM
Brother HL 1050
Brother HL 1050 DX
Brother HL 1050 LM
Brother HL 1060
Brother HL 1070
Brother HL-P 2000
Brother MFC-P 2000
Brother MFC-P 2000 DX
Brother Mfc-z5000 TN 300 HL