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