When {HEAD ~ the media} 12 reaches {TAIL ~ the end} of its first pass, it is backed up by the motor 48a under control of the logic 46 in response to inputs from the scan logic 20 until the next starting point is reached 
reaches
When { HEAD ~ the media } 12 reaches { TAIL ~ the end } of its first pass , it is backed up by the motor 48a under control of the logic 46 in response to inputs from the scan logic 20 until the next starting point is reached
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH