Walmart has the Canon PIXMA MG2522 All-in-One Inkjet Printer for $20 with free in-store pickup or $5.99 for shipping. Features a 4800x600 dpi maximum print resolution, black print speeds of up to 8ppm, color print speeds of up to 4ppm, and USB.
Walmart has the Brother WiFi Monochrome Laser Printer (EHLL2305w)refurbished for $56 with free shipping. List price: $99. Features up to 24 ppm print speeds, up to 2400x600 dpi printing, a 250-sheet automatic feeder, a 250-sheet paper tray, 802.11n wireless, and USB.