The paper passes over the scanner glass a second time to read the back side (Side B). The paper is ejected into the output tray.

Upfront cost is a primary concern, and you can afford a slightly slower scanning process.

For occasional multi-page jobs, the few extra seconds spent flipping the page internally won't impact your workflow significantly. www.printerservices.com.au A Quick Note on Terminology Manufacturers like

The vast majority of your scanning, copying, or faxing consists of single-sided documents.