cant print full A4 image made in PS CS2

hi,
i have made a poster in photoshop. when i created it i selected A4 but when i print it i am loosing alot of the image all around the border especially at the bottom.

what should i do to make it print from corner to corner and everything that i had on the page?

any help with be greatly appreciated

thanks in advance
Aaron

It is a printer issue. In fact no domestic printer (that I'm aware of) can print the full A4 area.