Everyday Mono Toner compatible with Brother TN-3430, Standard Yield, by Xerox. Comes with a lifetime warranty and is designed for optimum quality, performance, reliability, and safety. Offered at a significantly lower cost compared to cartridges from original manufactures, the Everyday™ Toner portfolio includes cartridges for major printer and copier brands. They meet or exceed industry standards for global safety and environmental compliance and may be returned to Xerox free of charge for recycling in an environmentally responsible way.