The liquid is transferred from the sleeve to {HEAD ~ the latent image} formed on {TAIL ~ the drum} for thereby developing it 
formed on
The liquid is transferred from the sleeve to { HEAD ~ the latent image } formed on { TAIL ~ the drum } for thereby developing it
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH