Lexmark 55B1H00 / 55B1000 High-Yield Black Toner Cartridge — Up to 15,000 Pages (5% Coverage) — Compatible with MS331, MS431, MX331, MX431 — 1 Pack (with Chip)

Direct replacement for Lexmark 55B1H00 (55B1000): this black high-yield toner cartridge is designed for seamless use in MS331, MS431, MX331 and MX431 laser printers. Print up to 15,000 pages at 5% coverage, making it well suited for busy offices or home setups that need longer intervals between replacements. The cartridge ships as a single unit (1 pack) and includes a chip for easy recognition and installation. Formulated to produce sharp text and rich images, it delivers consistent, professional-quality prints page after page.