This Ecotek remanufactured toner cartridge from eReplacements is 100% compatible with your original toner. eReplacements toner all come with a 1 year warranty against defects and will meet or exceed the original toner specifications because they are manufactured for high performance in our ISO 9001 and 14001 factories using the most up to date engineering control standards. Our toner cartridge are a cost effective solution to expensive OEM toner. The Ecotek brand is an enviromentally friendly product because we use virgin OEM cores that were destined for land fills and replace only the part that are necessary. The more parts we are able to reuse, the less parts end up in land fills. We only used the highest quality Japanese toner in our cartridges. Thousands of resellers, dealers and service companies over the years have trusted eReplacements to provide their customers with quality replacement imaging supplies.