How to Deal With Bill Jams at Your Kiosk

Bill jams are commonplace when your kiosk accepts cash payments. No matter how advanced the bill acceptor, there’s always that guy that inserts a bill covered in mud, or something worse, and gums up the device.

Source: blog.kiosksimple.com

Dual devices provide redundancy that comes in very handy, especially when collecting money. Nice writeup Andrew!