I have recently acquired an IS 760D Scanner for a client which is supposed to be, according to the literature, a duplex scanner yet after installing the drivers from the Ricoh website, I am unable to get the scanner to "auto duplex" any documents placed in the feeder. The unit is connected via USB cables.
I have used Adobe Acrobat as my PDF software as well as OmniPage and even though I select duplex on the interface, the system still requires me to re-insert the documents into the feeder to get the second side of the pages.

I have attempted to use both the ISIS drivers and the TWAIN drivers from the website yet it still will not scan DUPLEX.

I have found no information in the users manual for the dip switches which might resolve this issue.

Any suggestions would be appreciated