These printers use the 15W0901 cartridge:

Lexmark C 720

Lexmark C 720 DN

Lexmark C 720 N

Lexmark Optra C-720

Lexmark Optra C-720 DN

Lexmark Optra C-720 N

Lexmark X 720

Lexmark X 720 Color MFP

Lexmark X 720 MFP

Burroughs-Unisys UDS 170

Burroughs-Unisys UDS 170 N