These printers use the TN115M cartridge:

Brother DCP 9040 CN

Brother DCP 9040 CN Color

Brother DCP 9042 CDN

Brother DCP 9045 CDN

Brother DCP 9045 CDN Color

Brother HL 4040 CDN Color

Brother HL 4040 CDW

Brother HL 4040 CN

Brother HL 4040 CN Color

Brother HL 4040 CDN

Brother HL 4040 CW

Brother HL 4070 CDW

Brother HL 4070 CDW Color

Brother MFC 9440 CN

Brother MFC 9440 CN Color - MFP

Brother MFC 9450 CDN Color

Brother MFC 9450 CDN

Brother MFC 9840 CDW

Brother SD 10 Y - HL-4050CDN