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