{HEAD ~ The printing apparatus} can execute {TAIL ~ a back face} printing easily, and has good workability 
execute
{ HEAD ~ The printing apparatus } can execute { TAIL ~ a back face } printing easily , and has good workability
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH