A quality printer deserves quality parts, so avoid false economy and make sure you get yourself a genuine OKI imaging drum. It's designed to work with OKI C310, C330, C510, C530, MC351 and MC361 printers. Just replace the old drum to keep your printer producing the crispest, cleanest text and graphics. For a smooth, glossy finish that does justice to your documents, always choose OKI. This item prints up to 20,000 pages.