HP's Officejet 6700 Premium can't match the Epson WorkForce WF-3530DTWF for king-sized ruggedness, but this office-friendly all-in-one still has plenty to offer. There's a 30-sheet ADF up top, a 250-sheet input tray, automatic duplexing, fax support and a choice of USB 2, Ethernet and Wi-Fi...