Lexmark 55B1X00 Return Program Extra High-Yield Toner Cartridge Black, 20,000-Page Yield, for MS431, MX431 and MX432

Keep your Lexmark printer operating at peak performance with the Genuine Lexmark 55B1X00 Black Return Program Toner Cartridge. Designed for high-volume business printing, this high-yield toner cartridge delivers sharp black text, consistent image quality, and reliable performance from the first page to the last.

With a declared yield of up to 20,000 standard pages, the Lexmark 55B1X00 helps reduce cartridge changes and lower the cost per page for offices, schools, warehouses, and other busy work environments. Lexmark Unison™ Toner uses an innovative shake-free formulation engineered to support dependable printer performance and long-term print-system reliability.

This cartridge is compatible with select Lexmark MS431, MX431, and MX432 monochrome laser printers.

Key Features

• Genuine Lexmark OEM toner cartridge
• Manufacturer part number: 55B1X00
• Color: Black
• Cartridge type: Lexmark Return Program
• High yield: Up to 20,000 standard pages
• Yield measured according to ISO/IEC 19752
• Designed for high-volume monochrome laser printing
• Produces sharp text and consistent professional-quality output
• Unison™ Toner shake-free print technology
• Eligible for the Lexmark Cartridge Collection Program

Compatible Lexmark Printers

• Lexmark MS431dn
• Lexmark MS431dw
• Lexmark MX431adn
• Lexmark MX431adw
• Lexmark MX432adwe

Product Specifications

• Brand: Lexmark
• Product type: Toner cartridge
• Part number: 55B1X00
• Print technology: Monochrome laser
• Page yield: Up to 20,000 standard pages
• Package dimensions: 6.3 x 6.7 x 14.6 inches
• Packaged weight: 2.80 lb.
• UNSPSC code: 44103103

Important Return Program Information

Lexmark Return Program cartridges are sold under an agreement that the cartridge will be used only once and returned to Lexmark for recycling or remanufacturing. The cartridge is designed to stop operating after reaching its rated life. Please confirm that your printer model and geographical region are compatible before purchasing.

Why Choose Genuine Lexmark Supplies?

Genuine Lexmark toner cartridges are engineered specifically for Lexmark printers to provide dependable operation, consistent print quality, and reliable page yields. Using genuine supplies helps protect printer performance while minimizing interruptions and replacement issues.