Well I ran the new Print and Scan Doctor ... I then did a computer restart... I then used the 4520 printer to print a file that would exceed one page... I worked it printed on both sides of the paper without the intervening popup window... I am not sure how this corrected the problem but it did. One other item that puzzles me is that the properties display for that device under events shows the following what appears to be an error indication (requires further installation).
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