722c is a bit of an older printer. I'm guessing it just can't print that far down. How much space do you have left on the page, after all the text? If there's enough, maybe shrink the border to just surround the text, and not the whole page (may need to put the text in a cell/table, and give the cell/table a border).
Otherwise, you can try updating the drivers from HP's website, but I doubt that will help ... unless you're using something like 98 era drivers on an XP machine.
Graphic Design / Photography / Web Design