Generally people buy stand alone Inkjet printers for printing photos. This is especially true for the larger A3 models. A laser printer can't match the photographic look but some come close, the pro-graphics models which are often used to proof work before having it printed in bulk.
Could print A2?
The Canon Pro-1000 is A desktop size printer to serve professional photographers and aspiring amateurs. Print in stunning quality with a 12-ink pigment based system up to A2.