All cartridges are tested one by one before delivery to ensure complete working condition perfect compatibility and excellent print quality. Compatible Printers: Xpress C430W Xpress C430 Xpress C480FW Xpress C480FN Xpress C480 Xpress C43x Series Xpress C48x Series Details of the Structure : This high yield black Toner Cartridges the quality of prints clearly smoothly crisp dark sharp, keep real without fading, stably and long lasting. High-blackness toner makes the picture delicate firm fixing, distinct layers and image high precision. Package: Shockproof packaging to avoid shipping damage. Every Toner Cartridge is under strict quality control, carefully inspected and packaged to ensure that it is in the best condition. Warm Tips : Avoid environments where temperature and humidity change rapidly, such as next to air conditioners or heaters. Store in a normal temperature and humidity environment. We always care about your needs, and we strive to provide you with high-quality and cost-effective products