set Print on both sides . . . . . . DUPLEX *YES
2. If your terms can be printed then print them after the new page
3. If your terms are an overlay, identify that on the OVRPRTF for the back overlay. I think you will need to print at least a blank on the back page.
remember with Duplex *yes formfeed takes you to the back, next formfeed to the front of the next page.