The Lexmark B221H00 Toner Cartridge & B220Z00 Imaging Unit is a high-yield black toner designed for use with Lexmark printers. This product is a genuine Lexmark unit with a one-year manufacturer warranty, ensuring quality and reliability. The toner cartridge is compatible with specific Lexmark models such as MB2236 and B2236, offering excellent print quality through laser print technology. Made in the United States, this toner cartridge and imaging unit are essential supplies for maintaining efficient and professional printing output.