Experience consistently outstanding image quality and long-life system reliability with Lemark MS531/MS631/631 Return-Program Monochrome-Laser Imaging Units/Toner Cartridges. Cartridges' unique formula consistently delivers reliable, high-quality results all in an innovative, shake-free print system. Single-use Return Program cartridges should be returned only to Lexmark for remanufacturing or recycling. Use cartridges with compatible devices.

• Use toner cartridge for your printer to achieve high precision and accuracy in your printing tasks
• Use original Lexmark cartridges with your laser printer to achieve outstanding laser-quality results with exceptional clarity and precision
• Toner Cartridge provides a reliable printing solution with advanced toner technology, ensuring maximum productivity