Put an out of paper alert at the pump which also alarms in the store. Prevent the no paper option first but if it must happen, an alert would allow me to pick a different pump or get the receipt while I'm in the store for the MTO. I currently pump, order, pay, turn pump off and then have to go stand in line again to get the receipt. the email suggestions prevents this also. Limited parking often means I have to leave my car at the pump to get the receipt too.