If your HootBooth order came with a Printer Rescue Kit, you should study the guides below so you are prepared in the event that your printer fails at an event. The two most common reasons a printer my fail are either a paper jam caused by loose trim pieces, or a torn ribbon. In general these can almost always be resolved on-site. The forceps and adhesive craft sticks are used for getting to and removing trim pieces from the cutting mechanism. The tape is used for repairing torn ribbon. 

Follow these guides below:

Resolving paper jams

Repairing torn ribbon