Sharp MX-61NTBA Black Toner Cartridge
Sharp MX-3050, MX-3050N, MX-3070, MX-3070N, MX3070N, MX-3550, MX-3550N, MX-3570, MX-3570N, MX-4050, MX-4050N, MX-4070, MX-4070N, MX-5050, MX-5050N, MX-5070, MX-5070N, MX-6050, MX-6050N, MX6050N, MX-6070, MX-6070N, MX-2630, MX-2630N, MX-3071, MX-3571, MX-4071.

Manufacturer part numbers:
MX-61NTBA, MX61NTBA
MX-60NTBA, MX60NTBA