These printers use the 4K00198 cartridge:

Lexmark Optra M-410

Lexmark Optra M-410 N Solaris

Lexmark Optra M-410 Series

Lexmark Optra M-412

Lexmark Optra M-412 N Solaris

Lexmark Optra M-412 Series

Lexmark Optra M-4045

Burroughs-Unisys UDS 12

Burroughs-Unisys UDS 17

Burroughs-Unisys USD 12

Burroughs-Unisys USD 17