Expanding Text Fields, only when printed

All,

I have a dynamic form that has many text fields for user input. These fields have a fixed height, however allow multiple lines beyond the visible area. I don't want these text fields to expand when the field is exited, but rather when the form is printed. The form is set up neatly on 7 pages, and I'd like it continue to be 7 when the user is working, however I'd like it to expand to accomodate the extra text upon printing.

How can I make it so when I print, the fields expand and the data flows onto the next page(s)?

Thanks!

Aaron