a first image lens, wherein the first projecting beam emits to the first image lens, and {HEAD ~ the first image lens} images the first projecting beam onto {TAIL ~ a first imaging member} 
a first image lens , wherein the first projecting beam emits to the first image lens , and { HEAD ~ the first image lens } images the first projecting beam onto { TAIL ~ a first imaging member }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL