Lexmark is a global developer, manufacturer and supplier of printing solutions, including laser, inkjet, and dot matrix printers and associated consumable supplies for the office and home markets. Lexmark is driven to understand customers' needs and provide printing solutions that meet those needs. Lexmark testing is among the most rigorous in the industry so you can be confident that you're receiving the highest quality and dependability.This cartridge is designed for HP LaserJet 4000, 4050N, T, and TN models.