Lower your printing cost with our compatible Lexmark C734dw toner cartridges that are engineered with the same specifications as the original Brother cartridge. To ensure the best printing experience, we engineer our toner cartridges based on the specifications of your original Brother cartridges. Our customers can buy with confidence knowing that we stand 100% behind our products. All ink and toner cartridges include a 1-Year warranty and 100% customer satisfaction guarantee.