Thanks for your reply, Carl,
The issue is, when I print the particular form (12 x 8.5) on Epson DFX-5000+, using Microsoft's Epson DFX-5000+ driver, the driver still thinks it's a letter size (11 x 8.5) and the bottom 1 inch is printed on the next page. I changed the paper size to A4 (12 inch...