identifying the rewards qualified user at one of {HEAD ~ the plurality} of gaming machines by using the magnetic card reader to read {TAIL ~ the magnetic stripe} of the player identification card or reading the fingerprint of the rewards qualified user 
identifying the rewards qualified user at one of { HEAD ~ the plurality } of gaming machines by using the magnetic card reader to read { TAIL ~ the magnetic stripe } of the player identification card or reading the fingerprint of the rewards qualified user
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH