These printers use the 18C0033 cartridge:

Lexmark Color Jetprinter Z-810

Lexmark Color Jetprinter Z-812

Lexmark Color Jetprinter Z-815

Lexmark Color Jetprinter Z-816

Lexmark Color Jetprinter Z-818

Lexmark Home Copier Plus

Lexmark P 315

Lexmark P 450

Lexmark P 915

Lexmark P 4330

Lexmark P 4350

Lexmark P 6210

Lexmark P 6250

Lexmark P 6350

Lexmark P 8350

Lexmark Photo JetPrinter P-915

Lexmark Photo JetPrinter P-6250

Lexmark X 3330

Lexmark X 3350

Lexmark X 3530

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 5450

Lexmark X 5470

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