Compatible 135X W1350X High Capacity Black Toner Cartridge, with a yield of 2400 pages. Compatible with M209, M209dw, M209dwe, MFP M234, M234dw, M234dwe, M234sdwe, M234sdw, M234sdn and M234sdne printers. Complies with ISO 9001, ISO 14001 and ROHS quality standards. 12-month warranty. Recommended storage between 10 and 30 degrees Celsius and relative humidity of 20-80%. Includes installation tool. Does not include chip, the chip from the original HP toner must be reused. Ensures stable and sharp images thanks to its durable OPC drum, quality toner powder, stable magnetic roller, high-end charging roller and robust blade. Note: it is recommended to replace the original chip after consuming three or four toner cartridges. The printer may display a "low cartridge" message due to the use of an old chip, but it will not affect the printing process.