Océ does 3D scanning and printing.

Here a Youtube movie of the process: https://youtu.be/EXRt64HEBrk

Edit: this was only printed by Océ. More info can be found here: http://www.timzaman.com/2013/09/3d-scan-and-print-paintings/

Interesting quote: We noticed that things like glossiness and transparency that are in each painting are very distinguishing in the original, and we are not yet able to reproduce.