Thank you for the quick response. Okay, so the printer can't read the closed PDF file. However, my prior printer, the 6500, was able to at least detect the PDF files that were scanned on that printer to the memory card. It would load the card and say how many files were on it.
The 8600 doesn't even see the PDF files that it created. In addition, sometimes it recognizes that a card is inserted and sometimes it does not. I bought a new card, and it is viewed inconsistently as well. Is there a special setting for memory cards?