This was based on the proposition that the amount of toner deposited on the photoreceptor depends on {HEAD ~ the amount} of {TAIL ~ charge} deposited 
of
This was based on the proposition that the amount of toner deposited on the photoreceptor depends on { HEAD ~ the amount } of { TAIL ~ charge } deposited
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH