We've recently added a Markem Hot Melt Ink Printer to our engineering department and its an interesting addition.
How does this printer actually work?
Markem ink jet systems use Markem Touch Dry inks. These inks are instantly drying, non-toxic solid inks that contain no solvents and require no special handling. The printer produces prints that are crisp and do not smudge. It is also suitable for printing on a wide variety of packaging materials. Code changes and real time updates can be completed without any downtime too.