Picture mate is an inkject - with a unquie ink/paper cartige at about £30 to give 100 6x4's
Clone are available for half that price from click here among others
The R300 is a regular photo inkjet with camera port and card slots, will also run from 'puter
lots of ink about at good prices.
Then there are the 'Dye Sub' machines that come with a dyeto paper transfer system- with the material in a pack comnes out at about 50p or so for a 6x4
the results a truly photographic- Canon,Sony,Olypmus
who also do an A4 version
If this type of priinter interests you take a look also at click here