Comment by TeMPOraL

> Printers that can keep all the color channels lined up all the way down to their tightest dot pitch are few and far between.

It only takes one for a PoC. It only takes few to establish a service. Spatial and color accuracy is going to be a challenge, but I imagine there already exist methods to correct for that - e.g. printing reference patterns along with the data, so the scanner/digitizer can calibrate to it on the fly.