HP Officejet 7612 at ebuyer, £88.98 with £35 cashback and a free 3 year warranty, for £53.98 all in.
This is an A3+ printer, can print beyond (slightly) A3 size
Scanner (up to A3!) on top, and wifi/hard wired network printing.
ADF - auto document feeder, scan a stack of stuff at once
Duplexer - prints on both sides of the page automatically.
Runs on very cheap ink too, 932XL / 933XL , ~1000 pages black and ~800 colour, compatibles are under £7 for a set of all 4 carts - this makes it a lot cheaper than an awful lot of lasers to run :)
No personal experience of this one, though one's in the post - at yesterdays price, which was even cheaper! Gone up from ~£52 to £66 overnight, but still worth posting imo, a cracking deal - and it might fluctuate down again by the time you read this!
I have got experience of a similar printer in an HP A4 MFP, same carts, and I've no complaints. New wave of decent office inkjets do compare pretty well to small lasers, with their big size low price carts and fast print speeds.
Also is a fax!