Walmart offers the refurbished Brother WiFi Monochrome Laser Printer for $59.99 $57.24 with free shipping. That's $11 under the lowest price we could find for a new one. It features up to 2400x600 dpi printing, up to 24 ppm print speeds, a 250-sheet paper tray, a 250-sheet automatic feeder, 802.11n wireless, and USB.

Note: A 1-year warranty applies, but it's unclear who backs it.