These printers use the 12N0768 cartridge:
Lexmark C 910
Lexmark C 910 DN
Lexmark C 910 FN
Lexmark C 910 IN
Lexmark C 910 N
Lexmark C 912
Lexmark C 912 DN
Lexmark C 912 FN
Lexmark C 912 N
Lexmark X 912 E MFP