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 OEM specifications - with yield of up to 1500 pages- Replacement for OEM cartridge part number 6271B002- Fits printer models I-Sensys LBP-7100 cnI-Sensys LBP-7110 cwI-Sensys MF 623 CnI-Sensys MF 628 CwI-Sensys MF 8230 cnI-Sensys MF 8280 cw- Environmentally friendly while easy on the budget without sacrificing quality!- 1 Year Manufacturer's warranty