OK. It's late and I blurted the question after an all day learning spree. When I Scan, and I read the directions about the iMac, no "Scan to" pop up comes up, and there is no "Save as" other than the Details. Why don't I have a "Scan to" pop up? I hope this illuminates the question above.
iMac (21.5-inch, Late 2012), OS X Mountain Lion (10.8.2)