There is information about how to use this Print Option in a very unusual place: in an ebook on the REB1200!
While the eBook Technologoies, Inc. website Guides don't have anything about this there Section 4: Managing eBook Editions
, the ebook counterpart available to all REB1200 owners, as a free download after registering your REB1200, has the info you seek.
In particular, on your REB1200, under the General Interest category, open eBook User's Guide Version 4.1
authored by eBook Technologoies, Inc. and turn to page 4. There you will note two new items added to Section 4: Managing eBook Editions
, Transferring Personal Content to Your eBook
and Printing Unencrypted Content
The latter has instructions to setup a Postscript capable printer with Windows using Internet Information Server (IIS) to make this work. Below I post images of the relevant sections as a quick reference.
By the way, I could never get this to work, so if you get it working, please post here what works for you. AND THIS IS NOT AVAILABLE TO THE EBW1150.