Lexmark X 6650
Lexmark X 6650 Compatible Cartridges: 

Lexmark X 6650 Remanufactured Cartridges: 

Lexmark 18C2170 cartridges are used in these printers:
Lexmark X 3650, Lexmark X 4650, Lexmark X 5650, Lexmark X 5650 ES, Lexmark X 6650, Lexmark X 6675, Lexmark X 6675 All In One, Lexmark Z 2420,
Lexmark 18C2180 cartridges are used in these printers:
Lexmark X 3650, Lexmark X 4650, Lexmark X 5650, Lexmark X 5650 ES, Lexmark X 6650, Lexmark X 6675, Lexmark X 6675 All In One, Lexmark Z 2420,
Lexmark 18C0031 cartridges are used in these printers:
Lexmark Color Jetprinter Z810, Lexmark Color Jetprinter Z812, Lexmark Color Jetprinter Z815, Lexmark Color Jetprinter Z816, Lexmark Color Jetprinter Z818, Lexmark Home Copier Plus, Lexmark P 915, Lexmark P 4330, Lexmark P 4350, Lexmark P 6210, Lexmark P 6250, Lexmark P 6350, Lexmark P 8350, Lexmark Photo JetPrinter P915, Lexmark Photo JetPrinter P6250, Lexmark X 2500, Lexmark X 2530, Lexmark X 2550, Lexmark X 2600 AIO, Lexmark X 2600 All In One, Lexmark X 2620, Lexmark X 2630, Lexmark X 2650 AIO, Lexmark X 2650 All In One, Lexmark X 2670, Lexmark X 3330, Lexmark X 3350, Lexmark X 3530, Lexmark X 3650, Lexmark X 4350, Lexmark X 4650, Lexmark X 5070, Lexmark X 5075, Lexmark X 5210, Lexmark X 5250, Lexmark X 5250 All In One Printer, Lexmark X 5260, Lexmark X 5270, Lexmark X 5270 All In One Printer, Lexmark X 5320, Lexmark X 5340, Lexmark X 5410, Lexmark X 5450, Lexmark X 5470, Lexmark X 5495, Lexmark X 5650, Lexmark X 5650 ES, Lexmark X 5690, Lexmark X 6650, Lexmark X 6675, Lexmark X 6675 All In One, Lexmark X 7170, Lexmark X 7170 All In One Printer, Lexmark X 7300, Lexmark X 7300 Series, Lexmark X 7350, Lexmark X 8350, Lexmark Z 810, Lexmark Z 812, Lexmark Z 815, Lexmark Z 816, Lexmark Z 818, Lexmark Z 818 ColorJet Printer, Lexmark Z 845, Lexmark Z 1300, Lexmark Z 1310, Lexmark Z 1320, Lexmark Z 1410, Lexmark Z 2300, Lexmark Z 2320, Lexmark Z 2420,