Printer Toner LEXMARK 70C20K0 Black:The original LEXMARK 70C20K0 black toner cartridge is designed for the LEXMARK CS310dn, CS310n, CS410dn, CS410dtn, CS410n, CS510de and CS510dte printers. It delivers up to 1,000 A4 pages at 5% coverage.Lexmark Return program is suitable especially for companies that demand fast, easy and eco-friendly disposal of empty toner cartridges. This service applies only to empty original Lexmark toners that were used only once. A pickup demand is only valid for a package consisting of at least five empty original Lexmark toners. A free pickup service right from the customers or dealers office is provided by Lexmark via a designated carrier.Specifications:Compatible printers:LEXMARK CS310dn/ CS310n/ CS410dn/ CS410dtn/ CS410n/ CS510de/ CS510dteColour:BlackShelf life: 2 yearsPage yield: 1,000 pages (continuous single-sided printing)