a transfer element that is turned on or off by a transfer signal and that transfers the electric charge in the photoelectric conversion element to {HEAD ~ the input node} in {TAIL ~ an on state}, and 
in
a transfer element that is turned on or off by a transfer signal and that transfers the electric charge in the photoelectric conversion element to { HEAD ~ the input node } in { TAIL ~ an on state } , and
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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH