Cummins JETSCAN 4068 Bill Counter PLEASE READ

Description

HERE IS THE STORY THIS BILL COUNTER WAS USE ONCE A WEEK FOR 6 MONTHS IN A ARCADE.
IT WAS A REFURBISHED UNIT WHEN IT WAS BOUGHT.  IT WORKED FINE ALL THE TIME BUT NOW IT KEEPS SHOWING UP NO CALL AND DOUBLE DETECTION AFTER  EVERY FEW BILLS.
WE DO NOT KNOW WHAT IS WRONG SO WE ARE SELLING THIS HAS IS FOR REPAIRS OR PARTS .
ALSO COMES WITH COVER. THANK YOU