We do know that you must use a spray finish. Brushed or rubbed finishes can disturb the quality of the image. We have also sealed the image with a spray finish and then brushed on an overcoat. The veneer can also be protected with a self-adhesive plastic laminate material. We have printed MANY sheets of veneer with no obvious printer damage.
Most printers have a thickness adjustment for printing on card stock and envelopes.
We obviously cannot guarantee the functioning of any printer. Check your owners manual for specifics. We will be happy to answer any questions we can. Humidity change can cause the veneer to slightly curl. To help correct this to make for reliable feeding gently roll the veneer in the opposite direction of the curl.