The Duplex Module Assembly is a must-have for any PageWide 556, 586, 377, 477, or 577 E58650 waste ink collector printer user. This compatible module allows you to effortlessly assemble modules, ensuring a smooth printing process without the hassle of manual module changes. It's designed to work seamlessly with these specific models, providing optimal performance and longevity. The module is made with durable and reliable materials, ensuring it can handle the rigors of your printing demands. With this Duplex Module Assembly, you can save time, reduce human error, and maintain the overall efficiency of your printing system.