scan macro sendkeys not working

I set up a macro to do a quick scan of docs. It basically skips through all the dialogues and ends with the image centered to the page and with the crop tool selected whereby I crop and export as needed. Worked great until I installed a new Epson all-in-one printer. Which I figured would be a little different dialogue anyway.  So I thought I could just alter the code a bit.

When the scan dialogue pops up it defaults with the "scan" button highlighted but I can't just hit enter for it to actually scan. I have to click on "scan".  I can however hit alt+s and scanning starts. So I change my macro to wait a few seconds for the scan dialogue to come up then SendKeys "%(s)" but it won't do it.

Any ideas?