Proven Performance and Quality - Significant Cost SavingsV7 cartridges are backed by over 40 years of high-performance manufacturing experience from ISO 9000 / ISO 14001 certified state-of-the-art facilities. toners and key components are carefully selected, matched and verified for optimal system performance before a design is released to production.After final assembly, every cartridge is tested in equipment like yours prior to packaging. High-strength cartons with protective inserts ensure a safe arrival from our warehouse to your delivery location. Each box contains easy-to-follow illustrated installation instructions.By using our replacement toner cartridges, you are also helping to protect the environment by keeping reusable, non-biodegradable materials out of landfills. - Built to meet or exceed OEM specifications - with a yield of up to 7000 pages- Replacement for OEM cartridge part number TK-5140K- Fits printer models ECOSYS M 6030 cdn, ECOSYS M 6530 cdn, ECOSYS P 6130 cdn- Environmentally friendly while easy on the budget without sacrificing quality- 1 Year Manufacturer's warranty