Blog search has found M-Bossed, they seem to be close to Chicago.
Apparently Ricoh has the advertising profile that Heidelberg would have in Dusseldorf.
The South hall is far from full but there is a lot of info on web and workflow.
Obviously I am still at a distance but I am reminded of Digital Solutions, a very small show compared to IPEX and no longer continuing. An annual event can keep up with technology, on whatever scale.