Using EDI for purchase orders

We have a supplier set up for EDI transmission of purchase orders in our system.  My users are frustrated because we are not able to print a hard copy of the purchase orders once the supplier has been set up on EDI.  Is this typical or am I missing some sort of report?  When I try to run the purchase order print report (portrait) from the list of reports available, I receive a 'pasta' error message: Pasta: Error: Error reading input file for type checking.
APP-FND-00500: AFPPRN received a return code of failure from routine FDUPRN. Program exited with status 1