The user enables the printing initiation instruction on {HEAD ~ the status information} to be implemented by {TAIL ~ the switch} on the printer  
to be implemented by
The user enables the printing initiation instruction on { HEAD ~ the status information } to be implemented by { TAIL ~ the switch } on the printer
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH