{TAIL ~ The second development unit} forms {HEAD ~ a second developer image} with a second developer permeating the light having prescribed wavelength therethrough 
{ TAIL ~ The second development unit } forms { HEAD ~ a second developer image } with a second developer permeating the light having prescribed wavelength therethrough
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH