{TAIL ~ Data} obtained by the sensor 20 is appropriately clocked out of the sensor and transferred to other electronic circuits of {HEAD ~ the scanner} 
{ TAIL ~ Data } obtained by the sensor 20 is appropriately clocked out of the sensor and transferred to other electronic circuits of { HEAD ~ the scanner }
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD