Generate sharp printouts with our compatible Lexmark Optra-S1855 toner cartridges and save time and money. Our compatible Lexmark toner cartridges will deliver the same clarity and readability as original Lexmark cartridges at a fraction of the cost. To certify that these discount toner cartridges for Lexmark Optra-S1855 printers perform up to industry standards for excellence, we test every cartridge before shipment. Our comprehensive 1-Year warranty covers all aspects of the cartridge, including print quality, performance, and page-yield. We value our customers and guarantee your satisfaction with our products. In the unlikely event that you are not entirely satisfied with your purchase, we will replace the cartridge or provide you a refund."