Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Printer OK, Scanner is very network un-friendly

If all you want is a printer, this unit is OK, but don't buy an HP2840 if you expect network friendly scanning functionality. The scan function is heavily dependent on software running on a PC. After owning this unit for a while, I finally gave it away and bought a Lexmark X422, which is an example of true network scanning (can scan *directly* to email and FTP (unlike the HP) and has java based scan-to-browser that doesn't require any installed software). Unfortunately the Lexmark is not color, but at least it's an example of how it can be done. Moral: know what you want and what to look for when it comes to scanning in a network multiuser environment.