Digital BW, The Print

I have read that most small Epson printers can print larger than
A4/letter size(sorry I am British).

I have an Epson R220 and have tried creating a custom page size and a
larger Photoshop document but all I get is the image rotated by 90
degrees in the centre of the page. Whatever i try to do by changing
the orientation I still get the the same result.

Can anyone please help?

Simon Cameron