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.

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.