Lexmark LEX55B1H0E Toner Cartridge MS431 MX431

Product Description

The LEXMARK LEX55B1H0E is a high-yield laser toner cartridge built for use in Lexmark MS431 and MX431 series printers. It uses Lexmark Unison Toner formulation, which is engineered to deliver consistent image quality across the full life of the cartridge without requiring shaking or agitation. This cartridge is intended for office environments where print reliability and output consistency are critical. Installation is straightforward and the cartridge is designed to integrate fully with supported Lexmark hardware for optimized printer performance and extended device service life.

The LEX55B1H0E fits the Lexmark MS431 and MX431 printer families, making it suited for workgroup and departmental printing environments that demand reliable monochrome laser output. It is appropriate for both contract and high-volume print programs where per-page consistency and cartridge longevity are priorities. The Unison Toner formulation supports sustainable printing practices by reducing waste associated with premature cartridge failure or inconsistent yield.

Key Features

• Unison Toner formulation delivers consistent image quality from first page to last without shaking
• High-yield output reduces replacement frequency in demanding print environments
• Engineered specifically for Lexmark MS431 and MX431 series printers
• Shake-free design simplifies installation and handling
• Supports extended printer service life through optimized toner-to-hardware compatibility
• Contract cartridge designation suitable for managed print service agreements

Compatibility

Designed for use with Lexmark MS431 and MX431 series printers as stated by the manufacturer.

Installation Notes

Power down the printer and allow it to cool before removing the existing toner cartridge. Remove the new cartridge from its packaging carefully and install it according to the printer manufacturer's documented procedure. No shaking or priming is required prior to installation. Follow all applicable local regulations for disposal of spent toner cartridges.