Link works again!
Samsung M2020W Mono Laser Printer $38 @Harvey Norman.
It has NFC tap and print, Samsung mobile print, Google Cloud print, Air Print, and WiFi Direct.
Expensive to run from what I've read, but cheap enough as a throw away I suppose, unless you buy cheap generic toner cartridges - some as cheap as $18 on eBay - found another one for $12 and free postage (thanks to everyone who posted links to some of these cheap cartridges in the comments)
Delivery is $5-15.
Unless you can pick one up in store for free by using click and collect at checkout.
Delivery is also free with Shipster if you have it (thanks to people who pointed that out in comments).
Ps. This deal is different from the one posted a few months ago for $48, and is now expired.
This one is another 20% off, and is now a clearance item.
Original deal that I posted earlier: https://www.ozbargain.com.au/node/473558