What is the proper way to correctly box and ship a PVC card printer and laminator?

It's all about the box and internal packaging. Do not use a non-factory box ever! If you do not have the box, you must acquire one, as the possibility of permanent damage when packaged improperly is almost certain.

PVC Card Printer Shipping Tips

Tip1: Do not discard your printer box or the internal packaging and store it so it stays in perfect condition

Tip 2: Video the unboxing of the printer and save the video file in a common place so others can review it when boxing is needed.

Tip 3: Do not trust any previous taping; inspect the bottom of the box, retape if needed, and thoroughly tape the top side on all open edges. 

Tip 4: Document the printer/laminator serial numbers in a common and shared document on all exchanges.