Premium Mono Toner Cartridge Set engineered for Brother HL-L2300D/L2320D/MFC-L2700 printers. High-density polymerized toner ensures sharp 1200×1200 dpi resolution with zero smudging. Precision-molded ABS housing with anti-leak silica gel seals prevents toner spills. Each set includes 4 cartridges (TN630/TN2310/TN2330/TN2360/TN26J compatibility) for 5,000-page yield at 5% coverage. Ideal for high-volume office printing, academic materials, and small business documentation. OPC drum coated with ultra-light-sensitive layer extends lifespan by 30% versus standard cartridges. Electrostatic charge optimization guarantees consistent grayscale accuracy for contracts/blueprints. Seamless drop-in installation with 100% chip recognition - no reset tools required. Vacuum-sealed industrial packaging ensures OEM-grade freshness during global shipping. Bulk purchase available for corporate procurement with volume discounts.