How do I scan directly to a USB flash drive on the M226dw?

Insert a USB flash drive into the walk-up USB port, load your document on the scanner glass, then from the Home screen touch Scan and select Scan to USB Drive. Touch the Scan button to scan and save the file; the product automatically creates a folder named HPSCANS on the USB drive and saves the file in .PDF or .JPG format. This feature is available on touchscreen (dw) models only. (Page 57)