These Lexmark supplies are designed to provide value, reliability and outstanding print quality. Yield*: For C935 and X945e, Up to 53,000 pages; For X940e, Up to 50,000 pages. *Photoconductor maximum yield estimate based on 5 average letter/A4-size pages per print job. Actual Yield may vary based on other factors such as device speed, paper size and feed orientation, toner coverage, tray source, percentage of black-only printing and average print job complexity. - Yield may vary based on actual customer usage.