There are no laser based wide format color systems out there from the major manufacturers.
If there are, they are price prohibitive.
What your customer would find would be a couple of systems to meet his or her needs.
Oce has a TCS400 system which is a separate scanner, controller and printer. They can scan the color document and direct it to print on the inkjet printer. No doubt an expensive output solution because it is ink based.
Probably looking at the $40,000 range for this one.
The other is something like a Vidar scanner with an HP color plotter or Encad plotter to do the same thing. Probably not as expensive but still has a high output cost.
I know HP has a new system that is both a copier and plotter. But it is still inkjet technology.
Hope this helps.
John