Essential to Lexmark Print System Performance. Consistently outstanding image quality. Long-life system reliability. Superior sustainability. This 74C0ZK0 black imaging drum unit is essential for top-quality prints. Each component has been engineered to gently handle toner powder and distribute it with precision to paper. It is compatible with Lexmark C 4150/CS 720/CS 725/CX 725 printers and yields approximately 150,000 pages.