Problem with PO print out received via Fax to Vendor

Hi Gurus,

I have a scenario where a PO sent via Fax to Vendor has a problem, the text in the PO is in English and Greek, the problem is with the Greek Letters in the PO. The Vendor is from Greece. All the Greek letters are printed as XXXX.

The Vendor has Language GR maintained. Please let me know where the problem could be?

Regards,

KRN