TripleNetPricing via NeweggFlash offers the HP PageWide Pro 477dw Wireless Duplex Color All-in-One Business Inkjet Printer, which also scans, copies, and faxes, for $429.99 with free shipping. That's $270 off and the lowest price we could find. Features include:
up to 40 ppm print speeds
4.3" color touchscreen
auto 2-sided duplex printing
You very likely are putting your laptop battery into an early grave.