Which advantage does the HP Flow series MFPs have over regular HP MFPs?

A.
Simplex scan speed

B.
Scan to USB

C.
On board Optical Character Recognition (OCR)

D.
Blank page removal

Explanation:
Reference:http://www8.hp.com/au/en/hp-news/press-release.html?id=1349910#.Upbd12QmmZ0