Thanks for the response. Before I try what is suggested I just want to be clear on one thing.

When the print button is pressed the resulting function box is titled " Print one invoice"

One of the functions is to specify the number of copies. Your response seems to indicate that the problem is concerning my individual application and the ability to print multiple copies by simply specifying it the appropriate box at time of printing is OK for other users and not a flaw or omission in the QB program. Please confirm.  Thanks