What is the purpose of a scanner in a mail processing facility?

The purpose of a scanner in a mail processing facility revolves around its ability to read barcodes and track the movement of packages effectively. Scanners are essential for identifying packages through unique barcodes which encode vital information about the shipment, such as its source, destination, and current status in the delivery process.

By utilizing scanners, mail processing facilities can significantly enhance their efficiency in tracking the location and transit of packages, ensuring accurate and timely deliveries. This technology also allows for real-time updates in various systems, providing better visibility for both handlers and customers regarding where a package is at any given moment.

The other options, while relevant to different aspects of mail processing, do not accurately capture the primary function of scanners. Sorting mail into delivery routes typically involves sorting machines, printing shipping labels is done by label printers, and customer service support is managed through different customer interaction channels. Hence, focusing on the scanner's role in reading barcodes and tracking packages encapsulates the core responsibility of this tool within the mail processing ecosystem.