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