Tried posting earlier but never saw the post show up.
Any have a customer that bought a BH554e and a BH654e. The 554e will print their PDF without any problems. They print to the PDF to the 654e and the letter "U" drops out on occasion. Even if I use the 554e driver on the 654e. Even took the document to a BH C654e and had the same results. The 654e driver has no problem on the 554e. I was able to get the 654e to print properly but it was with a HP print driver which they do not want to use as they want to use "Locked Print". Adobe Acrobat Reader and Professional print fine. Konicaminolta feels that it is not a copier issue since Adobe works. Still waiting to hear back from Nitro PDF.