Using the duplex setting allows the printer to print on both sides of the paper, effectively reducing paper usage by half for multipage documents. This option is ideal for conserving resources in a high-volume environment. According to the CompTIA A+ Core 1 objectives, duplexing is a standard function in multifunction devices, helping reduce paper usage and optimize printing efficiency. This method not only lowers costs but is also environmentally beneficial. Other options like "Orientation" only affect page layout, "Tray settings" adjust paper source without conserving resources, and "Quality" affects print resolution but not resource consumption.